Multiply#
- class astropy.modeling.functional_models.Multiply(factor=1, **kwargs)[source]#
Bases:
Fittable1DModel
Multiply a model by a quantity or number.
- Parameters:
- factor
float
Factor by which to multiply a coordinate.
- factor
Attributes Summary
Names of the parameters that describe models of this type.
Methods Summary
evaluate
(x, factor)One dimensional multiply model function.
fit_deriv
(x, *params)One dimensional multiply model derivative with respect to parameter.
Attributes Documentation
- factor = Parameter('factor', value=1.0)#
- fittable = True#
- linear = True#
- param_names = ('factor',)#
Names of the parameters that describe models of this type.
The parameters in this tuple are in the same order they should be passed in when initializing a model of a specific type. Some types of models, such as polynomial models, have a different number of parameters depending on some other property of the model, such as the degree.
When defining a custom model class the value of this attribute is automatically set by the
Parameter
attributes defined in the class body.
Methods Documentation