chi2_func¶
-
sitelle.fit.chi2_func(axis, spectrum, fit_params, delta=8)¶ Computes a chi square value only around fitted lines.
- axis : 1D
ndarray - Axis of the spectrum [cm-1]
- spectrum : 1D
ndarray - Spectrum on which the fit has been performed
- fit_params: dict
- fit parameters containing information about the lines (output from an orcs fit, e.g.
orcs.core.HDFCube.fit_lines_in_spectrum) - delta : int
- Delta in FWHM around line peak that should be used to compute the chi2. Default = 8
Returns: a chi square value, computed only around +- delta * fwhm each line Return type: float - axis : 1D