XSspline

class sherpa.astro.xspec.XSspline(name='spline')[source]

Bases: sherpa.astro.xspec.XSMultiplicativeModel

The XSPEC spline model: spline modification.

The model is described at [1].

Estart

The start x value (energy), in keV.

YStart

The start y value.

Yend

The end y value.

YPstart

The start dy/dx value.

YPEnd

The end dy/dx value.

Eend

The end x value (energy), in keV.

References

[1]https://heasarc.gsfc.nasa.gov/xanadu/xspec/manual/XSmodelSpline.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

thawedparhardmaxes
thawedparhardmins
thawedparmaxes
thawedparmins
thawedpars
version_enabled = True

Methods Documentation

apply(outer, *otherargs, **otherkwargs)
calc(pars, xlo, *args, **kwargs)
get_center()
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.

reset()
set_center(*args, **kwargs)
startup()
teardown()