Merging spectral windows in visibility data (pwkit.environments.casa.spwglue)

pwkit.environments.casa.spwglue - merge spectral windows in a MeasurementSet

I find that merging windows in this way offers a lot of advantages. This procesing step is very slow, however.

class pwkit.environments.casa.spwglue.Config

hackfield

alias of int

meanbp

alias of str

class pwkit.environments.casa.spwglue.Progress

This could be split out; it’s useful.