line,nchan,start,width,stepSee the help on "line" for more details. The default is all channels. The output will consist of only spectral data.
'nocal' Do not apply the gains file. By default, SINPOLY applies the gains file in copying the data. 'nopol' Do not apply polarization corrections. By default SINPOLY corrects for polarization cross-talk. 'window' Fit polynomial to each spectral window. Default is to fit all channels. 'dsb' Fit polynomial to each sideband for double sideband spectra. 'dsb' and 'window' are mutually exclusive.