Bases: astropy.modeling.core.Parametric1DModel
One dimensional power law model with a break.
Parameters : | amplitude : float
x_break : float
alpha_1 : float
alpha_2 : float
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See also
Notes
Model formula (with A for amplitude and \alpha_1 for alpha_1 and \alpha_2 for alpha_2):
f(x) = \left \{ \begin{array}{ll} A (x / x_{break}) ^ {-\alpha_1} & : x < x_{break} \\ A (x / x_{break}) ^ {-\alpha_2} & : x > x_{break} \\ \end{array} \right.
Attributes Summary
alpha_1 | |
alpha_2 | |
amplitude | |
param_names | list() -> new empty list |
x_break |
Methods Summary
deriv(x, amplitude, x_break, alpha_1, alpha_2) | One dimensional broken power law derivative |
eval(x, amplitude, x_break, alpha_1, alpha_2) | One dimensional broken power law model function |
Attributes Documentation
Methods Documentation
One dimensional broken power law derivative
One dimensional broken power law model function