Shift

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
input_units_allow_dimensionless
input_units_strict
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

input_units
input_units_allow_dimensionless = True
input_units_strict = True
inputs = ('x',)
linear = True
offset
outputs = ('x',)
param_names = ('offset',)

Methods Documentation

__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.

static evaluate(x, offset)[source] [edit on github]

One dimensional Shift model function

static fit_deriv(x, *params)[source] [edit on github]

One dimensional Shift model derivative with respect to parameter

static sum_of_implicit_terms(x)[source] [edit on github]

Evaluate the implicit term (x) of one dimensional Shift model