Exponential1D

class astropy.modeling.functional_models.Exponential1D(amplitude=1, tau=1, **kwargs)[source]

Bases: astropy.modeling.Fittable1DModel

One dimensional exponential model.

Parameters
amplitudefloat, optional
taufloat, optional

Attributes Summary

amplitude

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).

param_names

tau

Methods Summary

evaluate(x, amplitude, tau)

Evaluate the model on some input variables.

fit_deriv(x, amplitude, tau)

Derivative with respect to parameters

Attributes Documentation

amplitude = Parameter('amplitude', value=1.0)
input_units
param_names = ('amplitude', 'tau')
tau = Parameter('tau', value=1.0)

Methods Documentation

static evaluate(x, amplitude, tau)[source]

Evaluate the model on some input variables.

static fit_deriv(x, amplitude, tau)[source]

Derivative with respect to parameters