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Parameters

Parameters describe both the sample and the experiment. Changing a cell length moves calculated reflections; changing a scale changes their contribution to intensity; changing a background coefficient changes the signal underneath the peaks.

Look up GUI labels, Edi keys, Python paths and CIF names. The tables below lead to a description of every category and field.

A value and its context

A parameter's value needs its name, units and place in the model to be meaningful. Typical groups include:

Group Examples What to check
Unit cell Lengths and angles Units, symmetry and plausible geometry
Atom sites Fractional coordinates and occupancies Site meaning, symmetry restrictions and composition
Displacements Isotropic or anisotropic displacement parameters Convention, units and physical interpretation
Instrument and profile Calibration shifts and peak-width terms Instrument geometry and profile definition
Background and scale Background points or terms, phase scales Baseline behaviour and how phases contribute

The project model keeps structure quantities separate from experiment quantities. They may still be correlated in a fit.

Free and fixed

A free parameter is allowed to change during fitting. An active fixed parameter contributes to the calculation but keeps the value you supplied. A stored-only field is different: retaining it does not establish a calculation effect. The parameter index identifies the known stored-only fields and model-specific roles.

Review the free set before fitting. Only quantities that can vary independently belong in it. A fit cannot vary a value that describes the setup, such as the crystal radius, one that symmetry or a constraint sets, one the fit's data cannot determine, such as a cell fitted only to single-crystal intensities, or one the calculation has no derivative for yet. A value saved as free that cannot be fitted is loaded as fixed, with a message saying so. Keep the chosen free set with the saved project. Edit the free set in the Application or Python. Command line uses the choices saved in the project.

Uncertainties

A fitted parameter may have a standard uncertainty. Interpret it together with the measurement uncertainties, the model and correlations with other parameters.

A small standard uncertainty describes precision under the fit's assumptions. It does not remove uncertainty from calibration, sample effects, missing phases, an unsuitable background, or another systematic source.

See fit quality for how parameter uncertainties relate to agreement factors and the residual.

Constraints and symmetry

Some values are related by the crystallographic symmetry; others may be linked by a declared constraint. Such values are not independent fitting directions.

For example, a symmetry restriction on a coordinate cannot be treated as an arbitrary free coordinate simply because a table displays it. The application disables the free checkbox on such a value. Inspect the relationship before interpreting how many independently variable quantities the fit has.

Bounds and starting values

Use meaningful starting values. A fit begins at the project's current parameter values, and its final state can depend on that starting point.

Model-admissibility limits describe which values the model accepts. They have a different purpose from an optimiser's search bounds. Check the applicable model and interface documentation before treating a displayed range as an editable fitting interval.

When interpreting a constrained or limited value, check the applicable model and fitting settings. A result reaching a permitted limit can be a reason to inspect the starting assumptions, observations and parameter correlations.

For scan analyses, the fitting mode determines whether each dataset starts from the same template values or from the previous fit.

Names in code and files

A parameter can have a Python access path, an Edi persistence key, and a scientific CIF report name. These have different jobs. Use the current Python documentation for code and data formats for saved files. The code access path and the saved-file key need not be identical.

Parameter names across interfaces

Compare names used in the app, saved Edi projects, Python and CIF. Select a parameter to read its meaning, units and model restrictions.

About these names

GUI names use the application icon patterns. Python paths are checked against the supplied examples; use .value or .free on a parameter. CIF mappings can include EasyDiffraction extensions. A dash means no declared mapping was found; a listed field is not necessarily editable or independently free in every model.

Structure parameters

Space group

Parameter or field GUI name
Hermann-Mauguin symbol name
Space-group setting code
Space-group number number

Cell

Parameter or field GUI name
Cell length a a
Cell length b b
Cell length c c
Cell angle α α
Cell angle β β
Cell angle γ γ

Atom site

Parameter or field GUI name
Atom-site identifier id
Chemical element type
Wyckoff position WP
Displacement parameter type ADP type
Fractional x-coordinate x
Fractional y-coordinate y
Fractional z-coordinate z
Occupancy occ
Isotropic or equivalent displacement iso/eq

Atomic displacement

Parameter or field GUI name
Anisotropic atom-site identifier id
Displacement tensor component 11 11
Displacement tensor component 22 22
Displacement tensor component 33 33
Displacement tensor component 12 12
Displacement tensor component 13 13
Displacement tensor component 23 23

Scattering length

Parameter or field GUI name
Type type
Neutron scattering length b

Bond settings

Parameter or field GUI name
Minimum bond distance minimum distance
Bond-distance tolerance tolerance

Appearance

Parameter or field GUI name
Atom radius model atoms as
Colours colours
Atom scale atom scale
Ellipsoid probability probability
Labels labels
Atoms shown atoms shown
Bonds bonds
Cell cell
Axes axes

Symmetry operator

Parameter or field GUI name
Symmetry operation operation

Atom in the cell

Parameter or field GUI name
Source atom site site
Generating symmetry operation symmetry
Fractional x-coordinate x
Fractional y-coordinate y
Fractional z-coordinate z
Cartesian x-coordinate X
Cartesian y-coordinate Y
Cartesian z-coordinate Z
Occupancy occ
Isotropic displacement U U iso
Coincident-atom cluster cluster

Bond

Parameter or field GUI name
Atom 1 atom 1
Atom 2 atom 2
Site 1 site 1
Site 2 site 2
Symmetry 1 symmetry 1
Symmetry 2 symmetry 2
Distance distance

Cartesian frame

Parameter or field GUI name
Coordinate-transform element 11 M₁₁
Coordinate-transform element 12 M₁₂
Coordinate-transform element 13 M₁₃
Coordinate-transform element 21 M₂₁
Coordinate-transform element 22 M₂₂
Coordinate-transform element 23 M₂₃
Coordinate-transform element 31 M₃₁
Coordinate-transform element 32 M₃₂
Coordinate-transform element 33 M₃₃
Axes axes

Space group

Parameter or field Edi name
Hermann-Mauguin symbol _space_group.name_h_m
Space-group setting _space_group.coord_system_code
Space-group number _space_group.it_number

Cell

Parameter or field Edi name
Cell length a _cell.length_a
Cell length b _cell.length_b
Cell length c _cell.length_c
Cell angle α _cell.angle_alpha
Cell angle β _cell.angle_beta
Cell angle γ _cell.angle_gamma

Atom site

Parameter or field Edi name
Atom-site identifier _atom_site.id
Also accepted: _atom_site.label
Chemical element _atom_site.type_symbol
Wyckoff position _atom_site.wyckoff_letter
Displacement parameter type _atom_site.adp_type
Fractional x-coordinate _atom_site.fract_x
Fractional y-coordinate _atom_site.fract_y
Fractional z-coordinate _atom_site.fract_z
Occupancy _atom_site.occupancy
Isotropic or equivalent displacement _atom_site.adp_iso

Atomic displacement

Parameter or field Edi name
Anisotropic atom-site identifier _atom_site_aniso.id
Also accepted: _atom_site_aniso.label
Displacement tensor component 11 _atom_site_aniso.adp_11
Displacement tensor component 22 _atom_site_aniso.adp_22
Displacement tensor component 33 _atom_site_aniso.adp_33
Displacement tensor component 12 _atom_site_aniso.adp_12
Displacement tensor component 13 _atom_site_aniso.adp_13
Displacement tensor component 23 _atom_site_aniso.adp_23

Scattering length

Parameter or field Edi name
Type _scattering_length.type_symbol
Neutron scattering length _scattering_length.length_fm

Bond settings

Parameter or field Edi name
Minimum bond distance _geom.min_bond_distance_cutoff
Bond-distance tolerance _geom.bond_distance_inc

Appearance

Parameter or field Edi name
Atom radius model _structure_view.atom_view
Colours _structure_view.colour_scheme
Atom scale _structure_view.atom_scale
Ellipsoid probability _structure_view.adp_probability
Labels _structure_view.labels
Atoms shown _structure_view.atoms
Bonds _structure_view.bonds
Cell _structure_view.cell
Axes _structure_view.axes

Symmetry operator

Parameter or field Edi name
Symmetry operation _space_group_symop.operation_xyz

Atom in the cell

Parameter or field Edi name
Source atom site _expanded_atom_site.atom_site_id
Generating symmetry operation _expanded_atom_site.site_symmetry
Fractional x-coordinate _expanded_atom_site.fract_x
Fractional y-coordinate _expanded_atom_site.fract_y
Fractional z-coordinate _expanded_atom_site.fract_z
Cartesian x-coordinate _expanded_atom_site.cartn_x
Cartesian y-coordinate _expanded_atom_site.cartn_y
Cartesian z-coordinate _expanded_atom_site.cartn_z
Occupancy _expanded_atom_site.occupancy
Isotropic displacement U _expanded_atom_site.u_iso
Coincident-atom cluster _expanded_atom_site.cluster_id

Bond

Parameter or field Edi name
Atom 1 _geom_bond.expanded_atom_site_id_1
Atom 2 _geom_bond.expanded_atom_site_id_2
Site 1 _geom_bond.atom_site_label_1
Site 2 _geom_bond.atom_site_label_2
Symmetry 1 _geom_bond.site_symmetry_1
Symmetry 2 _geom_bond.site_symmetry_2
Distance _geom_bond.distance

Cartesian frame

Parameter or field Edi name
Coordinate-transform element 11 _atom_sites_cartn_transform.mat_11
Coordinate-transform element 12 _atom_sites_cartn_transform.mat_12
Coordinate-transform element 13 _atom_sites_cartn_transform.mat_13
Coordinate-transform element 21 _atom_sites_cartn_transform.mat_21
Coordinate-transform element 22 _atom_sites_cartn_transform.mat_22
Coordinate-transform element 23 _atom_sites_cartn_transform.mat_23
Coordinate-transform element 31 _atom_sites_cartn_transform.mat_31
Coordinate-transform element 32 _atom_sites_cartn_transform.mat_32
Coordinate-transform element 33 _atom_sites_cartn_transform.mat_33
Axes _atom_sites_cartn_transform.axes

Space group

Parameter or field Python name
Hermann-Mauguin symbol project.structures[0].space_group.name_h_m
Space-group setting project.structures[0].space_group.coord_system_code
Space-group number project.structures[0].space_group.it_number

Cell

Parameter or field Python name
Cell length a project.structures[0].cell.length_a
Cell length b project.structures[0].cell.length_b
Cell length c project.structures[0].cell.length_c
Cell angle α project.structures[0].cell.angle_alpha
Cell angle β project.structures[0].cell.angle_beta
Cell angle γ project.structures[0].cell.angle_gamma

Atom site

Parameter or field Python name
Atom-site identifier project.structures[0].atom_sites[0].id
Chemical element project.structures[0].atom_sites[0].type_symbol
Wyckoff position project.structures[0].atom_sites[0].wyckoff_letter
Displacement parameter type project.structures[0].atom_sites[0].adp_type
Fractional x-coordinate project.structures[0].atom_sites[0].fract_x
Fractional y-coordinate project.structures[0].atom_sites[0].fract_y
Fractional z-coordinate project.structures[0].atom_sites[0].fract_z
Occupancy project.structures[0].atom_sites[0].occupancy
Isotropic or equivalent displacement project.structures[0].atom_sites[0].adp_iso

Atomic displacement

Parameter or field Python name
Anisotropic atom-site identifier project.structures[0].atom_site_aniso[0].id
Displacement tensor component 11 project.structures[0].atom_site_aniso[0].adp_11
Displacement tensor component 22 project.structures[0].atom_site_aniso[0].adp_22
Displacement tensor component 33 project.structures[0].atom_site_aniso[0].adp_33
Displacement tensor component 12 project.structures[0].atom_site_aniso[0].adp_12
Displacement tensor component 13 project.structures[0].atom_site_aniso[0].adp_13
Displacement tensor component 23 project.structures[0].atom_site_aniso[0].adp_23

Scattering length

Parameter or field Python name
Type —
Neutron scattering length —

Bond settings

Parameter or field Python name
Minimum bond distance project.structures[0].geom.min_bond_distance_cutoff
Bond-distance tolerance project.structures[0].geom.bond_distance_inc

Appearance

Parameter or field Python name
Atom radius model —
Colours —
Atom scale —
Ellipsoid probability —
Labels —
Atoms shown —
Bonds —
Cell —
Axes —

Symmetry operator

Parameter or field Python name
Symmetry operation —

Atom in the cell

Parameter or field Python name
Source atom site —
Generating symmetry operation —
Fractional x-coordinate —
Fractional y-coordinate —
Fractional z-coordinate —
Cartesian x-coordinate —
Cartesian y-coordinate —
Cartesian z-coordinate —
Occupancy —
Isotropic displacement U —
Coincident-atom cluster —

Bond

Parameter or field Python name
Atom 1 —
Atom 2 —
Site 1 —
Site 2 —
Symmetry 1 —
Symmetry 2 —
Distance —

Cartesian frame

Parameter or field Python name
Coordinate-transform element 11 —
Coordinate-transform element 12 —
Coordinate-transform element 13 —
Coordinate-transform element 21 —
Coordinate-transform element 22 —
Coordinate-transform element 23 —
Coordinate-transform element 31 —
Coordinate-transform element 32 —
Coordinate-transform element 33 —
Axes —

Space group

Parameter or field CIF name
Hermann-Mauguin symbol _space_group.name_H-M_alt
Accepted aliases_space_group_name_H-M_alt
_symmetry.space_group_name_H-M
_symmetry_space_group_name_H-M
Space-group setting _space_group.IT_coordinate_system_code
Accepted aliases_space_group_IT_coordinate_system_code
_symmetry.IT_coordinate_system_code
_symmetry_IT_coordinate_system_code
Space-group number _space_group.IT_number
Accepted aliases_space_group_IT_number
_symmetry.Int_Tables_number
_symmetry_Int_Tables_number

Cell

Parameter or field CIF name
Cell length a _cell.length_a
Accepted aliases_cell_length_a
Cell length b _cell.length_b
Accepted aliases_cell_length_b
Cell length c _cell.length_c
Accepted aliases_cell_length_c
Cell angle α _cell.angle_alpha
Accepted aliases_cell_angle_alpha
Cell angle β _cell.angle_beta
Accepted aliases_cell_angle_beta
Cell angle γ _cell.angle_gamma
Accepted aliases_cell_angle_gamma

Atom site

Parameter or field CIF name
Atom-site identifier _atom_site.label
Accepted aliases_atom_site_label
_atom_site.id
Chemical element _atom_site.type_symbol
Accepted aliases_atom_site_type_symbol
Wyckoff position _atom_site.Wyckoff_symbol
Accepted aliases_atom_site_Wyckoff_symbol
_atom_site.Wyckoff_letter
Displacement parameter type _atom_site.ADP_type
Accepted aliases_atom_site_ADP_type
_atom_site_thermal_displace_type
_atom_site.thermal_displace_type
Fractional x-coordinate _atom_site.fract_x
Accepted aliases_atom_site_fract_x
Fractional y-coordinate _atom_site.fract_y
Accepted aliases_atom_site_fract_y
Fractional z-coordinate _atom_site.fract_z
Accepted aliases_atom_site_fract_z
Occupancy _atom_site.occupancy
Accepted aliases_atom_site_occupancy
Isotropic or equivalent displacement Biso: _atom_site.B_iso_or_equiv
Uiso: _atom_site.U_iso_or_equiv
Bani: _atom_site.B_iso_or_equiv
Uani: _atom_site.U_iso_or_equiv
beta: _atom_site.B_iso_or_equiv
Accepted aliases_atom_site_B_iso_or_equiv
_atom_site_U_iso_or_equiv

Atomic displacement

Parameter or field CIF name
Anisotropic atom-site identifier _atom_site_aniso.label
Accepted aliases_atom_site_aniso_label
_atom_site_anisotrop.id
Displacement tensor component 11 Uani: _atom_site_aniso.U_11
Bani: _atom_site_aniso.B_11
beta: _atom_site_aniso.beta_11
Accepted aliases_atom_site_aniso_B_11
_atom_site.aniso_B[1][1]
_atom_site_anisotrop.B[1][1]
_atom_site_aniso_U_11
_atom_site.aniso_U[1][1]
_atom_site_anisotrop.U[1][1]
_atom_site_aniso_beta_11
Displacement tensor component 22 Uani: _atom_site_aniso.U_22
Bani: _atom_site_aniso.B_22
beta: _atom_site_aniso.beta_22
Accepted aliases_atom_site_aniso_B_22
_atom_site.aniso_B[2][2]
_atom_site_anisotrop.B[2][2]
_atom_site_aniso_U_22
_atom_site.aniso_U[2][2]
_atom_site_anisotrop.U[2][2]
_atom_site_aniso_beta_22
Displacement tensor component 33 Uani: _atom_site_aniso.U_33
Bani: _atom_site_aniso.B_33
beta: _atom_site_aniso.beta_33
Accepted aliases_atom_site_aniso_B_33
_atom_site.aniso_B[3][3]
_atom_site_anisotrop.B[3][3]
_atom_site_aniso_U_33
_atom_site.aniso_U[3][3]
_atom_site_anisotrop.U[3][3]
_atom_site_aniso_beta_33
Displacement tensor component 12 Uani: _atom_site_aniso.U_12
Bani: _atom_site_aniso.B_12
beta: _atom_site_aniso.beta_12
Accepted aliases_atom_site_aniso_B_12
_atom_site.aniso_B[1][2]
_atom_site_anisotrop.B[1][2]
_atom_site_aniso_U_12
_atom_site.aniso_U[1][2]
_atom_site_anisotrop.U[1][2]
_atom_site_aniso_beta_12
Displacement tensor component 13 Uani: _atom_site_aniso.U_13
Bani: _atom_site_aniso.B_13
beta: _atom_site_aniso.beta_13
Accepted aliases_atom_site_aniso_B_13
_atom_site.aniso_B[1][3]
_atom_site_anisotrop.B[1][3]
_atom_site_aniso_U_13
_atom_site.aniso_U[1][3]
_atom_site_anisotrop.U[1][3]
_atom_site_aniso_beta_13
Displacement tensor component 23 Uani: _atom_site_aniso.U_23
Bani: _atom_site_aniso.B_23
beta: _atom_site_aniso.beta_23
Accepted aliases_atom_site_aniso_B_23
_atom_site.aniso_B[2][3]
_atom_site_anisotrop.B[2][3]
_atom_site_aniso_U_23
_atom_site.aniso_U[2][3]
_atom_site_anisotrop.U[2][3]
_atom_site_aniso_beta_23

Scattering length

Parameter or field CIF name
Type _edi_scattering_length.type_symbol
Neutron scattering length _edi_scattering_length.length_fm

Bond settings

Parameter or field CIF name
Minimum bond distance _geom.min_bond_distance_cutoff
Bond-distance tolerance _geom.bond_distance_incr

Appearance

Parameter or field CIF name
Atom radius model _edi_structure_view.atom_view
Colours _edi_structure_view.colour_scheme
Atom scale _edi_structure_view.atom_scale
Ellipsoid probability _edi_structure_view.adp_probability
Labels _edi_structure_view.labels
Atoms shown _edi_structure_view.atoms
Bonds _edi_structure_view.bonds
Cell _edi_structure_view.cell
Axes _edi_structure_view.axes

Symmetry operator

Parameter or field CIF name
Symmetry operation _space_group_symop.operation_xyz
Accepted aliases_space_group_symop_operation_xyz
_symmetry_equiv.pos_as_xyz
_symmetry_equiv_pos_as_xyz

Atom in the cell

Parameter or field CIF name
Source atom site _edi_expanded_atom_site.atom_site_id
Generating symmetry operation _edi_expanded_atom_site.site_symmetry
Fractional x-coordinate _edi_expanded_atom_site.fract_x
Fractional y-coordinate _edi_expanded_atom_site.fract_y
Fractional z-coordinate _edi_expanded_atom_site.fract_z
Cartesian x-coordinate _edi_expanded_atom_site.cartn_x
Cartesian y-coordinate _edi_expanded_atom_site.cartn_y
Cartesian z-coordinate _edi_expanded_atom_site.cartn_z
Occupancy _edi_expanded_atom_site.occupancy
Isotropic displacement U _edi_expanded_atom_site.u_iso
Coincident-atom cluster _edi_expanded_atom_site.cluster_id

Bond

Parameter or field CIF name
Atom 1 _edi_geom_bond.expanded_atom_site_id_1
Atom 2 _edi_geom_bond.expanded_atom_site_id_2
Site 1 _geom_bond.atom_site_label_1
Accepted aliases_geom_bond_atom_site_label_1
_geom_bond.atom_site_id_1
Site 2 _geom_bond.atom_site_label_2
Accepted aliases_geom_bond_atom_site_label_2
_geom_bond.atom_site_id_2
Symmetry 1 _geom_bond.site_symmetry_1
Accepted aliases_geom_bond_site_symmetry_1
Symmetry 2 _geom_bond.site_symmetry_2
Accepted aliases_geom_bond_site_symmetry_2
Distance _geom_bond.distance
Accepted aliases_geom_bond_distance
_geom_bond.dist

Cartesian frame

Parameter or field CIF name
Coordinate-transform element 11 _atom_sites_Cartn_transform.mat_11
Accepted aliases_atom_sites_Cartn_tran_matrix_11
_atom_sites.Cartn_transf_matrix[1][1]
Coordinate-transform element 12 _atom_sites_Cartn_transform.mat_12
Accepted aliases_atom_sites_Cartn_tran_matrix_12
_atom_sites.Cartn_transf_matrix[1][2]
Coordinate-transform element 13 _atom_sites_Cartn_transform.mat_13
Accepted aliases_atom_sites_Cartn_tran_matrix_13
_atom_sites.Cartn_transf_matrix[1][3]
Coordinate-transform element 21 _atom_sites_Cartn_transform.mat_21
Accepted aliases_atom_sites_Cartn_tran_matrix_21
_atom_sites.Cartn_transf_matrix[2][1]
Coordinate-transform element 22 _atom_sites_Cartn_transform.mat_22
Accepted aliases_atom_sites_Cartn_tran_matrix_22
_atom_sites.Cartn_transf_matrix[2][2]
Coordinate-transform element 23 _atom_sites_Cartn_transform.mat_23
Accepted aliases_atom_sites_Cartn_tran_matrix_23
_atom_sites.Cartn_transf_matrix[2][3]
Coordinate-transform element 31 _atom_sites_Cartn_transform.mat_31
Accepted aliases_atom_sites_Cartn_tran_matrix_31
_atom_sites.Cartn_transf_matrix[3][1]
Coordinate-transform element 32 _atom_sites_Cartn_transform.mat_32
Accepted aliases_atom_sites_Cartn_tran_matrix_32
_atom_sites.Cartn_transf_matrix[3][2]
Coordinate-transform element 33 _atom_sites_Cartn_transform.mat_33
Accepted aliases_atom_sites_Cartn_tran_matrix_33
_atom_sites.Cartn_transf_matrix[3][3]
Axes _atom_sites_Cartn_transform.axes
Accepted aliases_atom_sites_Cartn_transform_axes
_atom_sites.Cartn_transform_axes

Experiment parameters

Experiment type

Parameter or field GUI name
Beam mode beam mode
Sample form sample form
Probe probe
Scattering type scattering type
Dimensionality dimensionality
Polarisation polarisation

Calculation range

Parameter or field GUI name
Min min
Max max
Step step
Scattering angle 2θ
Min min
Max max
Step step
Time of flight TOF

Background

Parameter or field GUI name
Background anchor intensity intensity
Background anchor position position
Background coefficient coefficient
Background term order order
Polynomial background origin origin
Chebyshev domain minimum x min
Chebyshev domain maximum x max
Background model type
Background row identifier id

Background estimation

Parameter or field GUI name
Estimation mode estimation mode
Method method
Peak width peak width
Smoothness smoothness
Number of background anchors points
Background thinning tolerance tolerance
Anchors within peaks points in peaks
Calculated-peak treatment calculated peaks
Max terms max terms
Inputs digest inputs digest
Points digest points digest

Instrument

Parameter or field GUI name
TOF offset TOF offset
TOF linear TOF linear
TOF quadratic TOF quadratic
TOF reciprocal TOF reciprocal
Zero-point angular offset 2θ offset
Wavelength Wavelength
Sample displacement Sample displacement
Sample transparency Sample transparency
Polarization coefficient Polarization coefficient
Monochromator 2θ Monochromator 2θ
Secondary wavelength Wavelength 2
Secondary-to-primary intensity ratio Intensity ratio 2/1
Instrument instrument
Facility facility
2θ bank 2θ bank

Peak profile

Parameter or field GUI name
Exponential rise coefficient α₀ α₀
Exponential rise coefficient α₁ α₁
Exponential decay coefficient β₀ β₀
Exponential decay coefficient β₁ β₁
Gaussian broadening σ₀² σ₀²
Gaussian broadening σ₁² σ₁²
Gaussian broadening σ₂² σ₂²
Gaussian broadening size G size G
Gaussian broadening strain G strain G
Lorentzian broadening γ₀ γ₀
Lorentzian broadening γ₁ γ₁
Lorentzian broadening γ₂ γ₂
Lorentzian broadening size L size L
Lorentzian broadening strain L strain L
Gaussian broadening U U
Gaussian broadening V V
Gaussian broadening W W
Lorentzian broadening X X
Lorentzian broadening Y Y
Pseudo-Voigt mixing intercept Eta0
Pseudo-Voigt mixing slope Eta1
FCJ asymmetry S/L S/L
FCJ asymmetry D/L D/L
Bérar-Baldinozzi asymmetry A₀ A₀
Bérar-Baldinozzi asymmetry B₀ B₀
Bérar-Baldinozzi asymmetry A₁ A₁
Bérar-Baldinozzi asymmetry B₁ B₁
Bérar-Baldinozzi asymmetry AsyLim AsyLim
Profile profile
Peak calculation cutoff cutoff (FWHM)

Excluded region

Parameter or field GUI name
Id id
Start start
End end

Extinction

Parameter or field GUI name
Domain radius Domain radius
Mosaic spread Mosaic spread
Crystal radius Crystal radius
Extinction coefficient Extinction coefficient
X11 x11
X22 x22
X33 x33
X12 x12
X13 x13
X23 x23
Type type
Mosaic distribution mosaic distribution

Linked structure

Parameter or field GUI name
Scale scale
Structure structure
Enabled enabled
Phase mass fraction weight fraction

Absorption

Parameter or field GUI name
ABSCOR1 ABSCOR1
ABSCOR2 ABSCOR2
ΜR μR
Type type

Preferred orientation

Parameter or field GUI name
March-Dollase coefficient r
Randomly oriented fraction f rand
Structure structure
Miller index h h
Miller index k k
Miller index l l

Observed reflections

Parameter or field GUI name
Observed-reflection threshold observed above (su)
On on
Threshold threshold

Scattering source

Parameter or field GUI name
X-ray form factors X-ray form factors
X-ray dispersion X-ray dispersion
Neutron scattering lengths neutron scattering lengths

Data source

Parameter or field GUI name
Measured-data filename data file

Measured data point

Parameter or field GUI name
Scattering angle 2θ
Time of flight TOF
Measured intensity meas
Measured intensity uncertainty s.u.
Interplanar spacing d
Calculated intensity calc
Background intensity bkg
Calculation status status

Calculated point

Parameter or field GUI name
Point point

Structure curves

Parameter or field GUI name
Structure order structure order

Structure curve

Parameter or field GUI name
Structure calc structure calc

Reflection

Parameter or field GUI name
Structure structure
Interplanar spacing d
Sin θ/λ sin θ/λ
Miller index h h
Miller index k k
Miller index l l
F calc F calc
F meas F meas
F² calc F² calc
Measured intensity F² meas
Measured intensity uncertainty s.u.
Calculated intensity F² calc
Λ λ
Scattering angle 2θ
Time of flight TOF

Experiment type

Parameter or field Edi name
Beam mode _experiment_type.beam_mode
Sample form _experiment_type.sample_form
Probe _experiment_type.radiation_probe
Scattering type _experiment_type.scattering_type
Dimensionality _experiment_type.dimensionality
Polarisation _experiment_type.polarisation

Calculation range

Parameter or field Edi name
Min _data_range.two_theta_min
Max _data_range.two_theta_max
Step _data_range.two_theta_step
Scattering angle _data_range.two_theta
Min _data_range.time_of_flight_min
Max _data_range.time_of_flight_max
Step _data_range.time_of_flight_step
Time of flight _data_range.time_of_flight

Background

Parameter or field Edi name
Background anchor intensity _background.intensity
Background anchor position _background.position
Background coefficient _background.coef
Background term order _background.order
Polynomial background origin _background.origin
Chebyshev domain minimum _background.x_min
Chebyshev domain maximum _background.x_max
Background model _background.type
Background row identifier _background.id

Background estimation

Parameter or field Edi name
Estimation mode _background_estimate.mode
Method _background_estimate.method
Peak width _background_estimate.width
Smoothness _background_estimate.smoothness
Number of background anchors _background_estimate.n_points
Background thinning tolerance _background_estimate.tolerance
Anchors within peaks _background_estimate.in_peaks
Calculated-peak treatment _background_estimate.use_model
Max terms _background_estimate.max_terms
Inputs digest _background_estimate.inputs_digest
Points digest _background_estimate.points_digest

Instrument

Parameter or field Edi name
TOF offset _instrument.calib_d_to_tof_offset
TOF linear _instrument.calib_d_to_tof_linear
TOF quadratic _instrument.calib_d_to_tof_quadratic
TOF reciprocal _instrument.calib_d_to_tof_reciprocal
Zero-point angular offset _instrument.calib_twotheta_offset
Wavelength _instrument.setup_wavelength
Sample displacement _instrument.calib_sample_displacement
Sample transparency _instrument.calib_sample_transparency
Polarization coefficient _instrument.setup_polarization_coefficient
Monochromator 2θ _instrument.setup_monochromator_twotheta
Secondary wavelength _instrument.setup_wavelength_2
Secondary-to-primary intensity ratio _instrument.setup_wavelength_2_to_1_ratio
Instrument _instrument.name
Facility _instrument.facility
2θ bank _instrument.setup_twotheta_bank

Peak profile

Parameter or field Edi name
Exponential rise coefficient α₀ _peak.rise_alpha_0
Exponential rise coefficient α₁ _peak.rise_alpha_1
Exponential decay coefficient β₀ _peak.decay_beta_0
Exponential decay coefficient β₁ _peak.decay_beta_1
Gaussian broadening σ₀² _peak.broad_gauss_sigma_0
Gaussian broadening σ₁² _peak.broad_gauss_sigma_1
Gaussian broadening σ₂² _peak.broad_gauss_sigma_2
Gaussian broadening size G _peak.broad_gauss_size
Gaussian broadening strain G _peak.broad_gauss_strain
Lorentzian broadening γ₀ _peak.broad_lorentz_gamma_0
Lorentzian broadening γ₁ _peak.broad_lorentz_gamma_1
Lorentzian broadening γ₂ _peak.broad_lorentz_gamma_2
Lorentzian broadening size L _peak.broad_lorentz_size
Lorentzian broadening strain L _peak.broad_lorentz_strain
Gaussian broadening U _peak.broad_gauss_u
Gaussian broadening V _peak.broad_gauss_v
Gaussian broadening W _peak.broad_gauss_w
Lorentzian broadening X _peak.broad_lorentz_x
Lorentzian broadening Y _peak.broad_lorentz_y
Pseudo-Voigt mixing intercept _peak.mixing_eta_0
Pseudo-Voigt mixing slope _peak.mixing_eta_1
FCJ asymmetry S/L _peak.asym_fcj_1
FCJ asymmetry D/L _peak.asym_fcj_2
Bérar-Baldinozzi asymmetry A₀ _peak.asym_beba_a0
Bérar-Baldinozzi asymmetry B₀ _peak.asym_beba_b0
Bérar-Baldinozzi asymmetry A₁ _peak.asym_beba_a1
Bérar-Baldinozzi asymmetry B₁ _peak.asym_beba_b1
Bérar-Baldinozzi asymmetry AsyLim _peak.asym_beba_limit
Profile _peak.type
Peak calculation cutoff _peak.cutoff_fwhm

Excluded region

Parameter or field Edi name
Id _excluded_region.id
Start _excluded_region.start
End _excluded_region.end

Extinction

Parameter or field Edi name
Domain radius _extinction.domain_radius
Mosaic spread _extinction.mosaic_spread
Crystal radius _extinction.crystal_radius
Extinction coefficient _extinction.coefficient
X11 _extinction.coefficient_11
X22 _extinction.coefficient_22
X33 _extinction.coefficient_33
X12 _extinction.coefficient_12
X13 _extinction.coefficient_13
X23 _extinction.coefficient_23
Type _extinction.type
Mosaic distribution _extinction.mosaic_distribution

Linked structure

Parameter or field Edi name
Scale _linked_structure.scale
Also accepted: _scale.value
Structure _linked_structure.structure_id
Enabled _linked_structure.enabled
Phase mass fraction _linked_structure.weight_fraction

Absorption

Parameter or field Edi name
ABSCOR1 _absorption.abscor1
ABSCOR2 _absorption.abscor2
ΜR _absorption.mu_r
Type _absorption.type

Preferred orientation

Parameter or field Edi name
March-Dollase coefficient _preferred_orientation.march_r
Randomly oriented fraction _preferred_orientation.march_random_fract
Structure _preferred_orientation.structure_id
Miller index h _preferred_orientation.index_h
Miller index k _preferred_orientation.index_k
Miller index l _preferred_orientation.index_l

Observed reflections

Parameter or field Edi name
Observed-reflection threshold _reflns.threshold_sigma
On _reflns.threshold_basis
Threshold _reflns.threshold_expression

Scattering source

Parameter or field Edi name
X-ray form factors _scattering_source.xray_form_factor
X-ray dispersion _scattering_source.xray_dispersion
Neutron scattering lengths _scattering_source.neutron_scattering_length

Data source

Parameter or field Edi name
Measured-data filename _data_source.file_name

Measured data point

Parameter or field Edi name
Scattering angle _data.two_theta
Time of flight _data.time_of_flight
Measured intensity _data.intensity_meas
Measured intensity uncertainty _data.intensity_meas_su
Interplanar spacing _data.d_spacing
Calculated intensity _data.intensity_calc
Background intensity _data.intensity_bkg
Calculation status _data.calc_status

Calculated point

Parameter or field Edi name
Point _data_calc.point_id

Structure curves

Parameter or field Edi name
Structure order _pd_calc_overall.component_presentation_order

Structure curve

Parameter or field Edi name
Structure calc _pd_calc.component_intensities_net

Reflection

Parameter or field Edi name
Structure _refln.structure_id
Interplanar spacing _refln.d_spacing
Sin θ/λ _refln.sin_theta_over_lambda
Miller index h _refln.index_h
Miller index k _refln.index_k
Miller index l _refln.index_l
F calc _refln.f_calc
F meas _refln.f_meas
F² calc _refln.f_squared_calc
Measured intensity _refln.intensity_meas
Measured intensity uncertainty _refln.intensity_meas_su
Calculated intensity _refln.intensity_calc
Λ _refln.wavelength
Scattering angle _refln.two_theta
Time of flight _refln.time_of_flight

Experiment type

Parameter or field Python name
Beam mode project.experiments[0].experiment_type.beam_mode
Sample form project.experiments[0].experiment_type.sample_form
Probe project.experiments[0].experiment_type.radiation_probe
Scattering type project.experiments[0].experiment_type.scattering_type
Dimensionality project.experiments[0].experiment_type.dimensionality
Polarisation project.experiments[0].experiment_type.polarisation

Calculation range

Parameter or field Python name
Min —
Max —
Step —
Scattering angle —
Min —
Max —
Step —
Time of flight —

Background

Parameter or field Python name
Background anchor intensity project.experiments[0].background[0].intensity
Background anchor position project.experiments[0].background[0].position
Background coefficient —
Background term order —
Polynomial background origin project.experiments[0].background_origin
Chebyshev domain minimum project.experiments[0].background_x_min
Chebyshev domain maximum project.experiments[0].background_x_max
Background model project.experiments[0].background_type
Background row identifier project.experiments[0].background[0].id

Background estimation

Parameter or field Python name
Estimation mode —
Method —
Peak width —
Smoothness —
Number of background anchors —
Background thinning tolerance —
Anchors within peaks —
Calculated-peak treatment —
Max terms —
Inputs digest —
Points digest —

Instrument

Parameter or field Python name
TOF offset project.experiments[0].instrument.calib_d_to_tof_offset
TOF linear project.experiments[0].instrument.calib_d_to_tof_linear
TOF quadratic project.experiments[0].instrument.calib_d_to_tof_quadratic
TOF reciprocal project.experiments[0].instrument.calib_d_to_tof_reciprocal
Zero-point angular offset project.experiments[0].instrument.calib_twotheta_offset
Wavelength project.experiments[0].instrument.setup_wavelength
Sample displacement project.experiments[0].instrument.calib_sample_displacement
Sample transparency project.experiments[0].instrument.calib_sample_transparency
Polarization coefficient project.experiments[0].instrument.setup_polarization_coefficient
Monochromator 2θ project.experiments[0].instrument.setup_monochromator_twotheta
Secondary wavelength project.experiments[0].instrument.setup_wavelength_2
Secondary-to-primary intensity ratio project.experiments[0].instrument.setup_wavelength_2_to_1_ratio
Instrument project.experiments[0].instrument.name
Facility project.experiments[0].instrument.facility
2θ bank project.experiments[0].instrument.setup_twotheta_bank

Peak profile

Parameter or field Python name
Exponential rise coefficient α₀ project.experiments[0].peak.rise_alpha_0
Exponential rise coefficient α₁ project.experiments[0].peak.rise_alpha_1
Exponential decay coefficient β₀ project.experiments[0].peak.decay_beta_0
Exponential decay coefficient β₁ project.experiments[0].peak.decay_beta_1
Gaussian broadening σ₀² project.experiments[0].peak.broad_gauss_sigma_0
Gaussian broadening σ₁² project.experiments[0].peak.broad_gauss_sigma_1
Gaussian broadening σ₂² project.experiments[0].peak.broad_gauss_sigma_2
Gaussian broadening size G project.experiments[0].peak.broad_gauss_size
Gaussian broadening strain G project.experiments[0].peak.broad_gauss_strain
Lorentzian broadening γ₀ project.experiments[0].peak.broad_lorentz_gamma_0
Lorentzian broadening γ₁ project.experiments[0].peak.broad_lorentz_gamma_1
Lorentzian broadening γ₂ project.experiments[0].peak.broad_lorentz_gamma_2
Lorentzian broadening size L project.experiments[0].peak.broad_lorentz_size
Lorentzian broadening strain L project.experiments[0].peak.broad_lorentz_strain
Gaussian broadening U project.experiments[0].peak.broad_gauss_u
Gaussian broadening V project.experiments[0].peak.broad_gauss_v
Gaussian broadening W project.experiments[0].peak.broad_gauss_w
Lorentzian broadening X project.experiments[0].peak.broad_lorentz_x
Lorentzian broadening Y project.experiments[0].peak.broad_lorentz_y
Pseudo-Voigt mixing intercept project.experiments[0].peak.mixing_eta_0
Pseudo-Voigt mixing slope project.experiments[0].peak.mixing_eta_1
FCJ asymmetry S/L project.experiments[0].peak.asym_fcj_1
FCJ asymmetry D/L project.experiments[0].peak.asym_fcj_2
Bérar-Baldinozzi asymmetry A₀ project.experiments[0].peak.asym_beba_a0
Bérar-Baldinozzi asymmetry B₀ project.experiments[0].peak.asym_beba_b0
Bérar-Baldinozzi asymmetry A₁ project.experiments[0].peak.asym_beba_a1
Bérar-Baldinozzi asymmetry B₁ project.experiments[0].peak.asym_beba_b1
Bérar-Baldinozzi asymmetry AsyLim project.experiments[0].peak.asym_beba_limit
Profile project.experiments[0].peak.type
Peak calculation cutoff project.experiments[0].peak.cutoff_fwhm

Excluded region

Parameter or field Python name
Id —
Start —
End —

Extinction

Parameter or field Python name
Domain radius —
Mosaic spread —
Crystal radius —
Extinction coefficient —
X11 —
X22 —
X33 —
X12 —
X13 —
X23 —
Type —
Mosaic distribution —

Linked structure

Parameter or field Python name
Scale project.experiments[0].linked_structures[0].scale
Structure project.experiments[0].linked_structures[0].structure_id
Enabled project.experiments[0].linked_structures[0].enabled
Phase mass fraction —

Absorption

Parameter or field Python name
ABSCOR1 project.experiments[0].absorption.abscor1
ABSCOR2 project.experiments[0].absorption.abscor2
ΜR project.experiments[0].absorption.mu_r
Type project.experiments[0].absorption.type

Preferred orientation

Parameter or field Python name
March-Dollase coefficient —
Randomly oriented fraction —
Structure —
Miller index h —
Miller index k —
Miller index l —

Observed reflections

Parameter or field Python name
Observed-reflection threshold —
On —
Threshold —

Scattering source

Parameter or field Python name
X-ray form factors —
X-ray dispersion —
Neutron scattering lengths —

Data source

Parameter or field Python name
Measured-data filename —

Measured data point

Parameter or field Python name
Scattering angle —
Time of flight —
Measured intensity —
Measured intensity uncertainty —
Interplanar spacing —
Calculated intensity —
Background intensity —
Calculation status —

Calculated point

Parameter or field Python name
Point —

Structure curves

Parameter or field Python name
Structure order —

Structure curve

Parameter or field Python name
Structure calc —

Reflection

Parameter or field Python name
Structure —
Interplanar spacing —
Sin θ/λ —
Miller index h —
Miller index k —
Miller index l —
F calc —
F meas —
F² calc —
Measured intensity —
Measured intensity uncertainty —
Calculated intensity —
Λ —
Scattering angle —
Time of flight —

Experiment type

Parameter or field CIF name
Beam mode _edi_experiment_type.beam_mode
Accepted aliases_easydiffraction_experiment_type.beam_mode
_expt_type.beam_mode
Sample form _edi_experiment_type.sample_form
Accepted aliases_easydiffraction_experiment_type.sample_form
_expt_type.sample_form
Probe _diffrn_radiation.probe
Accepted aliases_diffrn_radiation_probe
_easydiffraction_experiment_type.radiation_probe
_expt_type.radiation_probe
Scattering type _edi_experiment_type.scattering_type
Accepted aliases_easydiffraction_experiment_type.scattering_type
_expt_type.scattering_type
Dimensionality _edi_experiment_type.dimensionality
Polarisation _edi_experiment_type.polarisation

Calculation range

Parameter or field CIF name
Min _pd_meas.2theta_range_min
Accepted aliases_pd_meas_2theta_range_min
Max _pd_meas.2theta_range_max
Accepted aliases_pd_meas_2theta_range_max
Step _pd_meas.2theta_range_inc
Accepted aliases_pd_meas_2theta_range_inc
Scattering angle _edi_data_range.two_theta
Min _edi_data_range.time_of_flight_min
Accepted aliases_pd_meas.time_of_flight_range_min
Max _edi_data_range.time_of_flight_max
Accepted aliases_pd_meas.time_of_flight_range_max
Step _edi_data_range.time_of_flight_step
Time of flight _edi_data_range.time_of_flight

Background

Parameter or field CIF name
Background anchor intensity _pd_background.line_segment_intensity
Accepted aliases_pd_background_line_segment_intensity
Background anchor position _pd_background.line_segment_X
Accepted aliases_pd_background_line_segment_X
Background coefficient _pd_background.Chebyshev_coef
Background term order _pd_background.Chebyshev_order
Polynomial background origin _edi_background.origin
Chebyshev domain minimum _edi_background.x_min
Chebyshev domain maximum _edi_background.x_max
Background model _edi_background.type
Accepted aliases_easydiffraction_background.type
Background row identifier _pd_background.id

Background estimation

Parameter or field CIF name
Estimation mode _edi_background_estimate.mode
Method _edi_background_estimate.method
Peak width _edi_background_estimate.width
Smoothness _edi_background_estimate.smoothness
Number of background anchors _edi_background_estimate.n_points
Background thinning tolerance _edi_background_estimate.tolerance
Anchors within peaks _edi_background_estimate.in_peaks
Calculated-peak treatment _edi_background_estimate.use_model
Max terms _edi_background_estimate.max_terms
Inputs digest _edi_background_estimate.inputs_digest
Points digest _edi_background_estimate.points_digest

Instrument

Parameter or field CIF name
TOF offset _edi_instrument.calib_d_to_tof_offset
Accepted aliases_instr.d_to_tof_offset
TOF linear _edi_instrument.calib_d_to_tof_linear
Accepted aliases_instr.d_to_tof_linear
TOF quadratic _edi_instrument.calib_d_to_tof_quadratic
Accepted aliases_instr.d_to_tof_quad
TOF reciprocal _edi_instrument.calib_d_to_tof_reciprocal
Accepted aliases_instr.d_to_tof_recip
Zero-point angular offset _pd_calib.2theta_offset
Accepted aliases_pd_calib_2theta_offset
_instr.2theta_offset
Wavelength _diffrn_radiation_wavelength.value
Accepted aliases_diffrn_radiation_wavelength
_diffrn_radiation_wavelength.wavelength
_instr.wavelength
Sample displacement _edi_instrument.calib_sample_displacement
Accepted aliases_instr.sample_displacement
Sample transparency _edi_instrument.calib_sample_transparency
Accepted aliases_instr.sample_transparency
Polarization coefficient _edi_instrument.setup_polarization_coefficient
Monochromator 2θ _edi_instrument.setup_monochromator_twotheta
Secondary wavelength _edi_instrument.setup_wavelength_2
Secondary-to-primary intensity ratio _edi_instrument.setup_wavelength_2_to_1_ratio
Instrument _diffrn_source.beamline
Facility _diffrn_source.facility
2θ bank _pd_meas.2theta_fixed
Accepted aliases_pd_meas_2theta_fixed
_instr.2theta_bank

Peak profile

Parameter or field CIF name
Exponential rise coefficient α₀ _edi_peak.rise_alpha_0
Accepted aliases_easydiffraction_peak.rise_alpha_0
Exponential rise coefficient α₁ _edi_peak.rise_alpha_1
Accepted aliases_easydiffraction_peak.rise_alpha_1
Exponential decay coefficient β₀ _edi_peak.decay_beta_0
Accepted aliases_easydiffraction_peak.decay_beta_0
Exponential decay coefficient β₁ _edi_peak.decay_beta_1
Accepted aliases_easydiffraction_peak.decay_beta_1
Gaussian broadening σ₀² _edi_peak.broad_gauss_sigma_0
Accepted aliases_easydiffraction_peak.broad_gauss_sigma_0
Gaussian broadening σ₁² _edi_peak.broad_gauss_sigma_1
Accepted aliases_easydiffraction_peak.broad_gauss_sigma_1
Gaussian broadening σ₂² _edi_peak.broad_gauss_sigma_2
Accepted aliases_easydiffraction_peak.broad_gauss_sigma_2
Gaussian broadening size G _edi_peak.broad_gauss_size
Gaussian broadening strain G _edi_peak.broad_gauss_strain
Lorentzian broadening γ₀ _edi_peak.broad_lorentz_gamma_0
Accepted aliases_easydiffraction_peak.broad_lorentz_gamma_0
Lorentzian broadening γ₁ _edi_peak.broad_lorentz_gamma_1
Accepted aliases_easydiffraction_peak.broad_lorentz_gamma_1
Lorentzian broadening γ₂ _edi_peak.broad_lorentz_gamma_2
Accepted aliases_easydiffraction_peak.broad_lorentz_gamma_2
Lorentzian broadening size L _edi_peak.broad_lorentz_size
Lorentzian broadening strain L _edi_peak.broad_lorentz_strain
Gaussian broadening U _edi_peak.broad_gauss_u
Accepted aliases_easydiffraction_peak.broad_gauss_u
Gaussian broadening V _edi_peak.broad_gauss_v
Accepted aliases_easydiffraction_peak.broad_gauss_v
Gaussian broadening W _edi_peak.broad_gauss_w
Accepted aliases_easydiffraction_peak.broad_gauss_w
Lorentzian broadening X _edi_peak.broad_lorentz_x
Accepted aliases_easydiffraction_peak.broad_lorentz_x
Lorentzian broadening Y _edi_peak.broad_lorentz_y
Accepted aliases_easydiffraction_peak.broad_lorentz_y
Pseudo-Voigt mixing intercept _edi_peak.mixing_eta_0
Accepted aliases_easydiffraction_peak.mixing_eta_0
Pseudo-Voigt mixing slope _edi_peak.mixing_eta_1
Accepted aliases_easydiffraction_peak.mixing_eta_1
FCJ asymmetry S/L _edi_peak.asym_fcj_1
Accepted aliases_easydiffraction_peak.asym_fcj_1
FCJ asymmetry D/L _edi_peak.asym_fcj_2
Accepted aliases_easydiffraction_peak.asym_fcj_2
Bérar-Baldinozzi asymmetry A₀ _edi_peak.asym_beba_a0
Accepted aliases_easydiffraction_peak.asym_beba_a0
Bérar-Baldinozzi asymmetry B₀ _edi_peak.asym_beba_b0
Accepted aliases_easydiffraction_peak.asym_beba_b0
Bérar-Baldinozzi asymmetry A₁ _edi_peak.asym_beba_a1
Accepted aliases_easydiffraction_peak.asym_beba_a1
Bérar-Baldinozzi asymmetry B₁ _edi_peak.asym_beba_b1
Accepted aliases_easydiffraction_peak.asym_beba_b1
Bérar-Baldinozzi asymmetry AsyLim _edi_peak.asym_beba_limit
Accepted aliases_easydiffraction_peak.asym_beba_limit
Profile _edi_peak.type
Accepted aliases_easydiffraction_peak.type
Peak calculation cutoff _edi_peak.cutoff_fwhm
Accepted aliases_easydiffraction_peak.cutoff_fwhm

Excluded region

Parameter or field CIF name
Id _edi_excluded_region.id
Accepted aliases_easydiffraction_excluded_region.id
Start _edi_excluded_region.start
Accepted aliases_easydiffraction_excluded_region.start
End _edi_excluded_region.end
Accepted aliases_easydiffraction_excluded_region.end

Extinction

Parameter or field CIF name
Domain radius _edi_extinction.domain_radius
Mosaic spread _edi_extinction.mosaic_spread
Crystal radius _exptl_crystal.size_rad
Accepted aliases_exptl_crystal_size_rad
Extinction coefficient _edi_extinction.coefficient
X11 _edi_extinction.coefficient_11
X22 _edi_extinction.coefficient_22
X33 _edi_extinction.coefficient_33
X12 _edi_extinction.coefficient_12
X13 _edi_extinction.coefficient_13
X23 _edi_extinction.coefficient_23
Type _edi_extinction.type
Accepted aliases_easydiffraction_extinction.type
Mosaic distribution _edi_extinction.mosaic_distribution

Linked structure

Parameter or field CIF name
Scale _edi_linked_structure.scale
Accepted aliases_pd_phase_block.scale
_easydiffraction_sc_crystal_block.scale
_sc_crystal_block.scale
Structure _pd_phase_block.id
Accepted aliases_pd_phase_block_id
_easydiffraction_sc_crystal_block.id
_sc_crystal_block.id
Enabled _edi_linked_structure.enabled
Phase mass fraction _edi_linked_structure.weight_fraction

Absorption

Parameter or field CIF name
ABSCOR1 _edi_absorption.abscor1
ABSCOR2 _edi_absorption.abscor2
ΜR _edi_absorption.mu_r
Accepted aliases_easydiffraction_absorption.mu_r
Type _edi_absorption.type
Accepted aliases_easydiffraction_absorption.type

Preferred orientation

Parameter or field CIF name
March-Dollase coefficient _pd_pref_orient_March_Dollase.r
Accepted aliases_pref_orient.march_r
Randomly oriented fraction _edi_preferred_orientation.march_random_fract
Accepted aliases_easydiffraction_pref_orient.march_random_fract
_pref_orient.march_random_fract
Structure _pd_pref_orient_March_Dollase.phase_id
Accepted aliases_pref_orient.phase_id
Miller index h _pd_pref_orient_March_Dollase.index_h
Accepted aliases_pref_orient.index_h
Miller index k _pd_pref_orient_March_Dollase.index_k
Accepted aliases_pref_orient.index_k
Miller index l _pd_pref_orient_March_Dollase.index_l
Accepted aliases_pref_orient.index_l

Observed reflections

Parameter or field CIF name
Observed-reflection threshold _edi_reflns.threshold_sigma
On _edi_reflns.threshold_basis
Threshold _reflns.threshold_expression
Accepted aliases_reflns_threshold_expression
_reflns_observed_criterion
_reflns.observed_criterion

Scattering source

Parameter or field CIF name
X-ray form factors _edi_scattering_source.xray_form_factor
X-ray dispersion _edi_scattering_source.xray_dispersion
Neutron scattering lengths _edi_scattering_source.neutron_scattering_length

Data source

Parameter or field CIF name
Measured-data filename _edi_data_source.file_name

Measured data point

Parameter or field CIF name
Scattering angle _pd_meas.2theta_scan
Accepted aliases_pd_meas_2theta_scan
_pd_meas_angle_2theta
_pd_proc.2theta_scan
Time of flight _pd_meas.time_of_flight
Accepted aliases_pd_meas_time_of_flight
Measured intensity _pd_meas.intensity_total
Accepted aliases_pd_meas_intensity_total
_pd_proc.intensity_norm
Measured intensity uncertainty _pd_meas.intensity_total_su
Accepted aliases_pd_proc.intensity_norm_su
Interplanar spacing _pd_proc.d_spacing
Accepted aliases_pd_proc_d_spacing
Calculated intensity _pd_calc.intensity_total
Accepted aliases_pd_calc_intensity_total
Background intensity _pd_calc.intensity_bkg
Calculation status _edi_data.calc_status
Accepted aliases_pd_data.refinement_status

Calculated point

Parameter or field CIF name
Point _pd_data.point_id
Accepted aliases_pd_data_point_id

Structure curves

Parameter or field CIF name
Structure order _edi_pd_calc_overall.component_presentation_order

Structure curve

Parameter or field CIF name
Structure calc _pd_calc.component_intensities_net

Reflection

Parameter or field CIF name
Structure _pd_refln.phase_id
Accepted aliases_pd_refln_phase_id
_refln.phase_id
Interplanar spacing _refln.d_spacing
Accepted aliases_refln_d_spacing
Sin θ/λ _refln.sin_theta_over_lambda
Accepted aliases_refln_sint/lambda
_refln_sin_theta_over_lambda
_refln.sint_over_lambda
Miller index h _refln.index_h
Accepted aliases_refln_index_h
Miller index k _refln.index_k
Accepted aliases_refln_index_k
Miller index l _refln.index_l
Accepted aliases_refln_index_l
F calc _refln.F_calc
Accepted aliases_refln_F_calc
_refln.f_calc
F meas _refln.F_meas
Accepted aliases_refln_F_meas
F² calc _refln.F_squared_calc
Accepted aliases_refln_F_squared_calc
_refln.f_squared_calc
Measured intensity _refln.intensity_meas
Accepted aliases_refln_intensity_meas
Measured intensity uncertainty _refln.intensity_meas_su
Accepted aliases_refln_intensity_meas_su
_refln.intensity_sigma
_refln_intensity_sigma
Calculated intensity _refln.intensity_calc
Accepted aliases_refln_intensity_calc
Λ _refln.wavelength
Accepted aliases_refln_wavelength
Scattering angle _edi_refln.two_theta
Accepted aliases_refln.two_theta
Time of flight _edi_refln.time_of_flight
Accepted aliases_refln.time_of_flight

Project and analysis settings

Project

Parameter or field GUI name
Name name
Title title
Description description
Authors authors
Location location
Created created
Last modified last modified
Timestamp timestamp

Standard uncertainties

Parameter or field GUI name
Uncertainty rounding rule rule

Report

Parameter or field GUI name
HTML HTML
PDF PDF
CIF CIF
Embed chart libraries embed chart libraries
Excluded excluded

Correlation chart

Parameter or field GUI name
Threshold threshold

Pattern chart

Parameter or field GUI name
X-axis x-axis

Calculator

Parameter or field GUI name
Calculator calculator

Minimizer

Parameter or field GUI name
Minimizer minimizer
Max iterations max iterations
Descent descent
Tolerance tolerance

Fitting mode

Parameter or field GUI name
Fitting mode mode

Fitted reflections

Parameter or field GUI name
Fitted-reflection threshold fit reflections above (su)

Alias

Parameter or field GUI name
Alias alias
Parameter parameter

Constraint

Parameter or field GUI name
Id id
Expression expression
Enabled enabled

Joint-fit weights

Parameter or field GUI name
Weight weight

Sequential fit

Parameter or field GUI name
Data directory data directory
Files files
Reverse reverse
Template template

Scan extraction rule

Parameter or field GUI name
Id id
Extracted value name target
Pattern pattern
Required required

File header

Parameter or field GUI name
Schema version schema version

Saved report

Parameter or field GUI name
Format format
File file
Saved saved
Project saved project saved
Digest digest

Fit start value

Parameter or field GUI name
Parameter parameter
Start value start value
Start error start error
Start tied start tied

Fit result

Parameter or field GUI name
Kind kind
Success success
Message message
Iterations iterations
Time time
Reduced χ² reduced χ²
Objective objective
Objective value objective value
Number of fitted observations points
Parameters parameters
Free parameters free parameters
Degrees of freedom degrees of freedom
Covariance covariance
Exit reason exit reason
Rwp Rwp
Rp Rp
Rexp Rexp
CRp cRp
CRwp cRwp
Profile profile
Background background
Descent descent

Experiment fit result

Parameter or field GUI name
Number of fitted observations points
Rp Rp
Rwp Rwp
Rexp Rexp
CRp cRp
CRwp cRwp
Reduced χ² reduced χ²

Structure fit result

Parameter or field GUI name
R Bragg R Bragg
R F R F

Correlation

Parameter or field GUI name
Id id
Source source
Parameter 1 parameter 1
Parameter 2 parameter 2
Correlation correlation
File file

Report block

Parameter or field GUI name
Block block

Project

Parameter or field Edi name
Name _metadata.name
Title _metadata.title
Description _metadata.description
Authors _metadata.authors
Location _metadata.path
Created _metadata.created
Last modified _metadata.last_modified
Timestamp _metadata.timestamp

Standard uncertainties

Parameter or field Edi name
Uncertainty rounding rule _su_format.rule

Report

Parameter or field Edi name
HTML _report.html
PDF _report.pdf
CIF _report.cif
Embed chart libraries _report.html_offline
Excluded _report.excluded

Correlation chart

Parameter or field Edi name
Threshold _correlation_chart.threshold

Pattern chart

Parameter or field Edi name
X-axis _pattern_chart.x_axis

Calculator

Parameter or field Edi name
Calculator _calculator.type

Minimizer

Parameter or field Edi name
Minimizer _minimizer.type
Max iterations _minimizer.max_iterations
Descent _minimizer.descent
Tolerance _minimizer.chi_square_tolerance

Fitting mode

Parameter or field Edi name
Fitting mode _fitting_mode.type

Fitted reflections

Parameter or field Edi name
Fitted-reflection threshold _refine_ls.threshold_sigma

Alias

Parameter or field Edi name
Alias _alias.id
Parameter _alias.parameter_unique_name

Constraint

Parameter or field Edi name
Id _constraint.id
Expression _constraint.expression
Enabled _constraint.enabled

Joint-fit weights

Parameter or field Edi name
Weight _joint_fit.weight

Sequential fit

Parameter or field Edi name
Data directory _sequential_fit.data_dir
Files _sequential_fit.file_pattern
Reverse _sequential_fit.reverse
Template _sequential_fit.template_file

Scan extraction rule

Parameter or field Edi name
Id _sequential_fit_extract.id
Extracted value name _sequential_fit_extract.target
Pattern _sequential_fit_extract.pattern
Required _sequential_fit_extract.required

File header

Parameter or field Edi name
Schema version _edi.schema_version

Saved report

Parameter or field Edi name
Format _report_file.format
File _report_file.name
Saved _report_file.saved
Project saved _report_file.project_last_modified
Digest _report_file.digest

Fit start value

Parameter or field Edi name
Parameter _fit_parameter.id
Start value _fit_parameter.start_value
Start error _fit_parameter.start_uncertainty
Start tied _fit_parameter.start_tied

Fit result

Parameter or field Edi name
Kind _fit_result.result_kind
Success _fit_result.success
Message _fit_result.message
Iterations _fit_result.iterations
Time _fit_result.fitting_time
Reduced χ² _fit_result.reduced_chi_square
Objective _fit_result.objective_name
Objective value _fit_result.objective_value
Number of fitted observations _fit_result.n_data_points
Parameters _fit_result.n_parameters
Free parameters _fit_result.n_free_parameters
Degrees of freedom _fit_result.degrees_of_freedom
Covariance _fit_result.covariance_available
Exit reason _fit_result.exit_reason
Rwp _fit_result.prof_wr_factor
Rp _fit_result.prof_r_factor
Rexp _fit_result.prof_wr_expected
CRp _fit_result.prof_cr_factor
CRwp _fit_result.prof_cwr_factor
Profile _fit_result.profile_function
Background _fit_result.background_function
Descent _fit_result.descent

Experiment fit result

Parameter or field Edi name
Number of fitted observations _fit_result_bank.n_data_points
Rp _fit_result_bank.prof_r_factor
Rwp _fit_result_bank.prof_wr_factor
Rexp _fit_result_bank.prof_wr_expected
CRp _fit_result_bank.prof_cr_factor
CRwp _fit_result_bank.prof_cwr_factor
Reduced χ² _fit_result_bank.chi_square

Structure fit result

Parameter or field Edi name
R Bragg _fit_result_phase.bragg_r_factor
R F _fit_result_phase.f_r_factor

Correlation

Parameter or field Edi name
Id _fit_parameter_correlation.id
Source _fit_parameter_correlation.source_kind
Parameter 1 _fit_parameter_correlation.parameter_unique_name_i
Parameter 2 _fit_parameter_correlation.parameter_unique_name_j
Correlation _fit_parameter_correlation.correlation
File _fit_parameter_correlation.file_path

Report block

Parameter or field Edi name
Block _pd_block.id

Project

Parameter or field Python name
Name project.metadata.name
Title project.metadata.title
Description project.metadata.description
Authors project.metadata.authors
Location project.metadata.path
Created project.metadata.created
Last modified project.metadata.last_modified
Timestamp project.metadata.timestamp

Standard uncertainties

Parameter or field Python name
Uncertainty rounding rule project.su_rule

Report

Parameter or field Python name
HTML —
PDF —
CIF —
Embed chart libraries —
Excluded —

Correlation chart

Parameter or field Python name
Threshold —

Pattern chart

Parameter or field Python name
X-axis —

Calculator

Parameter or field Python name
Calculator —

Minimizer

Parameter or field Python name
Minimizer —
Max iterations —
Descent project.descent
Tolerance —

Fitting mode

Parameter or field Python name
Fitting mode project.fitting_mode

Fitted reflections

Parameter or field Python name
Fitted-reflection threshold —

Alias

Parameter or field Python name
Alias —
Parameter —

Constraint

Parameter or field Python name
Id —
Expression —
Enabled —

Joint-fit weights

Parameter or field Python name
Weight project.experiments[0].dataset_weight

Sequential fit

Parameter or field Python name
Data directory —
Files —
Reverse —
Template —

Scan extraction rule

Parameter or field Python name
Id —
Extracted value name —
Pattern —
Required —

File header

Parameter or field Python name
Schema version —

Saved report

Parameter or field Python name
Format —
File —
Saved —
Project saved —
Digest —

Fit start value

Parameter or field Python name
Parameter —
Start value —
Start error —
Start tied —

Fit result

Parameter or field Python name
Kind —
Success —
Message —
Iterations —
Time —
Reduced χ² —
Objective —
Objective value —
Number of fitted observations —
Parameters —
Free parameters —
Degrees of freedom —
Covariance —
Exit reason —
Rwp —
Rp —
Rexp —
CRp —
CRwp —
Profile —
Background —
Descent —

Experiment fit result

Parameter or field Python name
Number of fitted observations —
Rp —
Rwp —
Rexp —
CRp —
CRwp —
Reduced χ² —

Structure fit result

Parameter or field Python name
R Bragg —
R F —

Correlation

Parameter or field Python name
Id —
Source —
Parameter 1 —
Parameter 2 —
Correlation —
File —

Report block

Parameter or field Python name
Block —

Project

Parameter or field CIF name
Name _edi_metadata.name
Accepted aliases_project.id
Title _edi_metadata.title
Accepted aliases_project.title
Description _edi_metadata.description
Accepted aliases_project.description
Authors _edi_metadata.authors
Location _edi_metadata.path
Created _edi_metadata.created
Accepted aliases_project.created
Last modified _edi_metadata.last_modified
Accepted aliases_project.last_modified
Timestamp _edi_metadata.timestamp
Accepted aliases_easydiffraction_project.timestamp
_software.timestamp

Standard uncertainties

Parameter or field CIF name
Uncertainty rounding rule _edi_su_format.rule

Report

Parameter or field CIF name
HTML _edi_report.html
Accepted aliases_report.html
PDF _edi_report.pdf
Accepted aliases_report.pdf
CIF _edi_report.cif
Accepted aliases_report.cif
Embed chart libraries _edi_report.html_offline
Accepted aliases_report.html_offline
Excluded _edi_report.excluded

Correlation chart

Parameter or field CIF name
Threshold _edi_correlation_chart.threshold

Pattern chart

Parameter or field CIF name
X-axis _edi_pattern_chart.x_axis

Calculator

Parameter or field CIF name
Calculator _edi_calculator.type
Accepted aliases_easydiffraction_calculator.type

Minimizer

Parameter or field CIF name
Minimizer _edi_minimizer.type
Accepted aliases_easydiffraction_minimizer.type
Max iterations _edi_minimizer.max_iterations
Accepted aliases_easydiffraction_minimizer.max_iterations
Descent _edi_minimizer.descent
Tolerance _edi_minimizer.chi_square_tolerance

Fitting mode

Parameter or field CIF name
Fitting mode _edi_fitting_mode.type
Accepted aliases_easydiffraction_fitting_mode.type

Fitted reflections

Parameter or field CIF name
Fitted-reflection threshold _edi_refine_ls.threshold_sigma

Alias

Parameter or field CIF name
Alias _edi_alias.id
Accepted aliases_easydiffraction_alias.id
_alias.label
Parameter _edi_alias.parameter_unique_name
Accepted aliases_easydiffraction_alias.parameter_unique_name
_alias.param_unique_name

Constraint

Parameter or field CIF name
Id _edi_constraint.id
Accepted aliases_easydiffraction_constraint.id
Expression _edi_constraint.expression
Accepted aliases_easydiffraction_constraint.expression
Enabled _edi_constraint.enabled

Joint-fit weights

Parameter or field CIF name
Weight _edi_joint_fit.weight
Accepted aliases_easydiffraction_joint_fit.weight

Sequential fit

Parameter or field CIF name
Data directory _edi_sequential_fit.data_dir
Accepted aliases_easydiffraction_sequential_fit.data_dir
Files _edi_sequential_fit.file_pattern
Accepted aliases_easydiffraction_sequential_fit.file_pattern
Reverse _edi_sequential_fit.reverse
Accepted aliases_easydiffraction_sequential_fit.reverse
Template _edi_sequential_fit.template_file

Scan extraction rule

Parameter or field CIF name
Id _edi_sequential_fit_extract.id
Accepted aliases_easydiffraction_sequential_fit_extract.id
Extracted value name _edi_sequential_fit_extract.target
Accepted aliases_easydiffraction_sequential_fit_extract.target
Pattern _edi_sequential_fit_extract.pattern
Accepted aliases_easydiffraction_sequential_fit_extract.pattern
Required _edi_sequential_fit_extract.required
Accepted aliases_easydiffraction_sequential_fit_extract.required

File header

Parameter or field CIF name
Schema version _edi_edi.schema_version

Saved report

Parameter or field CIF name
Format _edi_report_file.format
File _edi_report_file.name
Saved _edi_report_file.saved
Project saved _edi_report_file.project_last_modified
Digest _edi_report_file.digest

Fit start value

Parameter or field CIF name
Parameter _edi_fit_parameter.id
Start value _edi_fit_parameter.start_value
Accepted aliases_fit_parameter.start_value
Start error _edi_fit_parameter.start_uncertainty
Accepted aliases_fit_parameter.start_uncertainty
Start tied _edi_fit_parameter.start_tied

Fit result

Parameter or field CIF name
Kind _edi_fit_result.result_kind
Accepted aliases_fit_result.result_kind
Success _edi_fit_result.success
Accepted aliases_fit_result.success
Message _edi_fit_result.message
Accepted aliases_fit_result.message
Iterations _edi_fit_result.iterations
Accepted aliases_fit_result.iterations
Time _edi_fit_result.fitting_time
Accepted aliases_fit_result.fitting_time
Reduced χ² _edi_fit_result.reduced_chi_square
Accepted aliases_fit_result.reduced_chi_square
Objective _edi_fit_result.objective_name
Accepted aliases_fit_result.objective_name
Objective value _edi_fit_result.objective_value
Accepted aliases_fit_result.objective_value
Number of fitted observations _edi_fit_result.n_data_points
Accepted aliases_fit_result.n_data_points
Parameters _edi_fit_result.n_parameters
Accepted aliases_fit_result.n_parameters
Free parameters _edi_fit_result.n_free_parameters
Accepted aliases_fit_result.n_free_parameters
Degrees of freedom _edi_fit_result.degrees_of_freedom
Accepted aliases_fit_result.degrees_of_freedom
Covariance _edi_fit_result.covariance_available
Accepted aliases_fit_result.covariance_available
Exit reason _edi_fit_result.exit_reason
Accepted aliases_fit_result.exit_reason
Rwp _edi_fit_result.prof_wr_factor
Accepted aliases_fit_result.prof_wR_factor
Rp _edi_fit_result.prof_r_factor
Accepted aliases_fit_result.prof_R_factor
Rexp _edi_fit_result.prof_wr_expected
Accepted aliases_fit_result.prof_wR_expected
CRp _edi_fit_result.prof_cr_factor
CRwp _edi_fit_result.prof_cwr_factor
Profile _edi_fit_result.profile_function
Accepted aliases_fit_result.profile_function
Background _edi_fit_result.background_function
Accepted aliases_fit_result.background_function
Descent _edi_fit_result.descent

Experiment fit result

Parameter or field CIF name
Number of fitted observations _edi_fit_result_bank.n_data_points
Rp _pd_proc_ls.prof_R_factor
Accepted aliases_pd_proc_ls_prof_R_factor
Rwp _pd_proc_ls.prof_wR_factor
Accepted aliases_pd_proc_ls_prof_wR_factor
Rexp _pd_proc_ls.prof_wR_expected
Accepted aliases_pd_proc_ls_prof_wR_expected
CRp _edi_fit_result_bank.prof_cr_factor
CRwp _edi_fit_result_bank.prof_cwr_factor
Reduced χ² _edi_fit_result_bank.chi_square

Structure fit result

Parameter or field CIF name
R Bragg _refine_ls.R_I_factor
Accepted aliases_refine_ls_R_I_factor
_refine.ls_R_I_factor_obs
R F _refine_ls.R_factor_all
Accepted aliases_refine_ls_R_factor_all
_refine.ls_R_factor_all

Correlation

Parameter or field CIF name
Id _edi_fit_parameter_correlation.id
Accepted aliases_fit_parameter_correlation.id
Source _edi_fit_parameter_correlation.source_kind
Accepted aliases_fit_parameter_correlation.source_kind
Parameter 1 _edi_fit_parameter_correlation.parameter_unique_name_i
Accepted aliases_fit_parameter_correlation.param_unique_name_i
Parameter 2 _edi_fit_parameter_correlation.parameter_unique_name_j
Accepted aliases_fit_parameter_correlation.param_unique_name_j
Correlation _edi_fit_parameter_correlation.correlation
Accepted aliases_fit_parameter_correlation.correlation
File _edi_fit_parameter_correlation.file_path

Report block

Parameter or field CIF name
Block _pd_block.id
Accepted aliases_pd_block_id