delta_v_90¶
-
spectacle.analysis.delta_v_90(x, y)[source] [edit on github]¶ Calculate the dispersion that encompasses the central 90 percent of the apparant optical depth. Follows the formulation defined in Prochaska & Wolf (1997).
- Parameters
- x
Quantity The dispersion axis. Can be either wavelength or velocity space.
- yarray-like
Flux or optical depth array. Note that the calculation assumes that the data is optical depth. If providing flux, it will be converted to apparant optical depth.
- x