Basic Information on uvswap

Task: uvswap
Purpose: Relabel polarizations in uvdata.
Categories: uv analysis

        UVSWAP relabels RL correlations as LR and LR correlations as RL.
        XY are relabeled YX and YX correlations as XY.
        RR, LL, XX and YY  are left unchanged.  The data are copied in their
        raw form only, gain, polarization and bandpass tables are
        neither applied nor copied.
 

Key: vis
        Input visibility data file. No default

Key: out
        Output visibility data file name. No default.

Key: options
       xyswap  swap X and Y pols.
    XX to YY, YY to XX, XY to YX and YX to XY.