Sine1D¶
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class
astropy.modeling.functional_models.
Sine1D
[source] [edit on github]¶ Bases:
astropy.modeling.Fittable1DModel
One dimensional Sine model.
Parameters: amplitude : float
Oscillation amplitude
frequency : float
Oscillation frequency
phase : float
Oscillation phase
Other Parameters: fixed : a dict
A dictionary
{parameter_name: boolean}
of parameters to not be varied during fitting. True means the parameter is held fixed. Alternatively thefixed
property of a parameter may be used.tied : dict
A dictionary
{parameter_name: callable}
of parameters which are linked to some other parameter. The dictionary values are callables providing the linking relationship. Alternatively thetied
property of a parameter may be used.bounds : dict
eqcons : list
A list of functions of length
n
such thateqcons[j](x0,*args) == 0.0
in a successfully optimized problem.ineqcons : list
A list of functions of length
n
such thatieqcons[j](x0,*args) >= 0.0
is a successfully optimized problem.Notes
Model formula:
\[f(x) = A \sin(2 \pi f x + 2 \pi p)\]Attributes Summary
amplitude
frequency
param_names
phase
Methods Summary
evaluate
(x, amplitude, frequency, phase)One dimensional Sine model function fit_deriv
(x, amplitude, frequency, phase)One dimensional Sine model derivative Attributes Documentation
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amplitude
¶
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frequency
¶
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param_names
= ('amplitude', 'frequency', 'phase')¶
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phase
¶
Methods Documentation
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static
evaluate
(x, amplitude, frequency, phase)[source] [edit on github]¶ One dimensional Sine model function
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static
fit_deriv
(x, amplitude, frequency, phase)[source] [edit on github]¶ One dimensional Sine model derivative
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