regular_wl_axis

sitelle.utils.regular_wl_axis(axis, xlims=None)

Converts a wavenumber axis ([cm-1]) into a regular (==equally spaced) wavelength axis ([Angstroms])

Parameters:

• axis (1D ndarray) – Input axis in cm-1
• xlims (tuple of floats) – (Optional) limits in cm-1 to reduce the range of the axis (typically : filter range)

Returns:

reg_axis – a regular axis in Angstroms

Return type:

1D ndarray