AIPS HELP file for ALTSWTCH in 31DEC18
As of Sun Feb 25 1:03:31 2018
ALTSWTCH: Verb to switch between velocity and frequency axis
INNAME Image name(name).
INCLASS Image name(class).
INSEQ 0.0 9999.0 Image name(seq. #). 0=>high
INDISK 0.0 9.0 Disk drive #. 0 => any.
Use: After ALTDEF has been used to define a relationship
between frequency and spectral-line velocity, the user may
select one or the other to be the main image header
description of the relevant axis. This description will
be used by axis labeling and other display routines.
ALTSWTCH switches the header between the two descriptions.
INNAME......Image name(name). Standard defaults.
INCLASS.....Image name(class). Standard defaults.
INSEQ.......Image name(seq. #). 0 => highest.
INDISK......Disk drive # of image. 0 => any.