Shift¶
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class
astropy.modeling.functional_models.
Shift
(offset=0, **kwargs)[source] [edit on github]¶ Bases:
astropy.modeling.Fittable1DModel
Shift a coordinate.
Parameters: - offset : float
Offset to add to a coordinate.
Attributes Summary
input_units
This property is used to indicate what units or sets of units the evaluate method expects, and returns a dictionary mapping inputs to units (or None
if any units are accepted).inputs
linear
offset
outputs
param_names
Methods Summary
__call__
(x[, model_set_axis, …])Evaluate this model using the given input(s) and the parameter values that were specified when the model was instantiated. evaluate
(x, offset)One dimensional Shift model function fit_deriv
(x, *params)One dimensional Shift model derivative with respect to parameter sum_of_implicit_terms
(x)Evaluate the implicit term (x) of one dimensional Shift model Attributes Documentation
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input_units
¶ This property is used to indicate what units or sets of units the evaluate method expects, and returns a dictionary mapping inputs to units (or
None
if any units are accepted).Model sub-classes can also use function annotations in evaluate to indicate valid input units, in which case this property should not be overridden since it will return the input units based on the annotations.
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inputs
= ('x',)¶
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linear
= True¶
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offset
¶
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outputs
= ('x',)¶
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param_names
= ('offset',)¶
Methods Documentation
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__call__
(x, model_set_axis=None, with_bounding_box=False, fill_value=nan, equivalencies=None) [edit on github]¶ Evaluate this model using the given input(s) and the parameter values that were specified when the model was instantiated.
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static
evaluate
(x, offset)[source] [edit on github]¶ One dimensional Shift model function
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static
fit_deriv
(x, *params)[source] [edit on github]¶ One dimensional Shift model derivative with respect to parameter
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static
sum_of_implicit_terms
(x)[source] [edit on github]¶ Evaluate the implicit term (x) of one dimensional Shift model