For a relatively simple program to drive, uvlin has a rather large number of input parameters. Task uvlin behaves somewhat like a copying program, taking an input dataset (selecting, calibrating and performing Stokes conversion, as appropriate), performing the continuum subtraction, and writing out a resultant dataset. Input parameters are:

Typical inputs to uvlin are:

in=line.uv Input dataset before continuum subtraction.
select Leave unset to select all data.
line Leave unset to select all channels.
chans=1,100,300,512 Channels 1 to 100, and 300 to 512 inclusive
  contain only continuum emission.
out=line.sub The output continuum subtracted dataset.
order=1 Use first order fit (which is the default).
offset The offset to apply. Probably leave unset.
mode Leave unset to get line data after
  continuum subtraction.
options Probably leave it unset

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