XSexpfac¶
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class
sherpa.astro.xspec.
XSexpfac
(name='expfac')[source]¶ Bases:
sherpa.astro.xspec.XSMultiplicativeModel
The XSPEC expfac model: exponential modification.
The model is described at [1].
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Ampl
¶ The amplitude of the effect.
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Factor
¶ The exponential factor.
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StartE
¶ The start energy of the modification, in keV.
References
[1] https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelExpfac.html Attributes Summary
thawedparhardmaxes
thawedparhardmins
thawedparmaxes
thawedparmins
thawedpars
version_enabled
Methods Summary
apply
(outer, \*otherargs, \*\*otherkwargs)calc
(pars, xlo, \*args, \*\*kwargs)get_center
()guess
(dep, \*args, \*\*kwargs)Set an initial guess for the parameter values. reset
()set_center
(\*args, \*\*kwargs)startup
()teardown
()Attributes Documentation
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thawedparhardmaxes
¶
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thawedparhardmins
¶
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thawedparmaxes
¶
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thawedparmins
¶
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thawedpars
¶
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version_enabled
= True¶
Methods Documentation
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apply
(outer, *otherargs, **otherkwargs)¶
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calc
(pars, xlo, *args, **kwargs)¶
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get_center
()¶
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guess
(dep, *args, **kwargs)¶ Set an initial guess for the parameter values.
Attempt to set the parameter values, and ranges, for the model to match the data values. This is intended as a rough guess, so it is expected that the model is only evaluated a small number of times, if at all.
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reset
()¶
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set_center
(*args, **kwargs)¶
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startup
()¶
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teardown
()¶
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