Lorentz1D

class sherpa.astro.models.Lorentz1D(name='lorentz1d')

Bases: sherpa.models.model.ArithmeticModel

One-dimensional normalized Lorentz model function.

fwhm

The full-width half maximum of the line.

pos

The center of the line.

ampl

The amplitude refers to the integral of the model.

See also

Beta1D, NormBeta1D

Notes

The functional form of the model for points is:

f(x) =                A * fwhm
       --------------------------------------
       2 * pi * (0.25 * fwhm^2 + (x - pos)^2)

   A = ampl / integral f(x) dx

and for an integrated grid it is the integral of this over the bin.

Attributes Summary

thawedparhardmaxes
thawedparhardmins
thawedparmaxes
thawedparmins
thawedpars

Methods Summary

apply(outer, \*otherargs, \*\*otherkwargs)
calc(pars, xlo, \*args, \*\*kwargs)
get_center()
guess(dep, \*args, \*\*kwargs)
reset()
set_center(pos, \*args, \*\*kwargs)
startup()
teardown()

Attributes Documentation

thawedparhardmaxes

thawedparhardmins

thawedparmaxes

thawedparmins

thawedpars

Methods Documentation

apply(outer, *otherargs, **otherkwargs)

calc(pars, xlo, *args, **kwargs)

get_center()

guess(dep, *args, **kwargs)

reset()

set_center(pos, *args, **kwargs)

startup()

teardown()