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LGET
[WEEDS\]LGET [LINEINDEX] [/INDEX]
Get a line from the line index. The commands checks if the line frequen-
cy is covered by the current scan. If yes, the scan frequency is modi-
fied so that the rest frequency corresponds to the line frequency. The
command works in a similar fashion than GET: for example LGET F will get
the first line in the line list, LGET N will get the next one, etc. It
is especially useful when one want to search for lines of a given
species. For example, one can list all methanol lines in the 3 mm band,
ordered by increasing upper level energy, with:
LAS> LLIST "CH3OH, vt=0,1" 80000 110000 /SORTBY e
and then examine each of the line candidates with:
LAS> LGET F
LAS> LPLOT
LAS> LGET N
LAS> LPLOT
LAS> ...
Options:
/INDEX search for the line in all scans of the scan index. If
this option is set, LGET begins by searching for the first
scan in scan index (from the last FIND command) that cov-
ers the line frequency. It is useful when working with
line surveys that consists in several scans, each covering
a different frequency band.
Arguments:
LINEINDEX the line index. It can be either:
1) One of the following letters:
"f" get the first line of the index
"l" get the last line of the index
"p" get the previous line in the index
"n" get the next line of the index
2) An integer
Gildas manager
2014-07-01