Trapezoid1D¶
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class
astropy.modeling.functional_models.
Trapezoid1D
[source] [edit on github]¶ Bases:
astropy.modeling.Fittable1DModel
One dimensional Trapezoid model.
Parameters: amplitude : float
Amplitude of the trapezoid
x_0 : float
Center position of the trapezoid
width : float
Width of the constant part of the trapezoid.
slope : float
Slope of the tails of the trapezoid
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.See also
Attributes Summary
amplitude
param_names
slope
width
x_0
Methods Summary
evaluate
(x, amplitude, x_0, width, slope)One dimensional Trapezoid model function Attributes Documentation
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amplitude
¶
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param_names
= ('amplitude', 'x_0', 'width', 'slope')¶
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slope
¶
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width
¶
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x_0
¶
Methods Documentation
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static
evaluate
(x, amplitude, x_0, width, slope)[source] [edit on github]¶ One dimensional Trapezoid model function
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