Polarization description not flexible enough

[pahjbo]

see https://listmgr.nrao.edu/pipermail/fitswcs/2008-March/thread.html

[lmichel]

During the model PR period, I looked in Vizier for data with polarisation parameters that match the model and I didn't find any.
My understanding at that time was that the way polarisation is expressed is very flexible, making difficult to have a model working for any case.

[mcdittmar]

Thanks for that reference! Is there a use-case you are working that would require expansion of the Polarization model?

I'll preface this comment with the statement that I have not read the full thread..

What is in the model now is primarily in support of the what is described in the FITS WCS standard. Transforming a numeric value to polarization state. During the model development I had brought up the topic of fractional polarization, but it didn't make the cut.