GREG

        ANALYSE\GREG Name [/FORMATTED]  [/READ [X n] [Y m]

    Writes in file Name the contents of current scan as a GILDAS  table,  or
    as a formatted file if the /FORMATTED option is present.

    If the /READ option is present, performs the reverse operation: load the
    file content in the current scan. Only available  for  formatted  files;
    the  equivalent capability for GILDAS tables is available through a com-
    bination of DEFINE IMAGE and MODEL.

    For the table, the information stored is :
        1. Intensity
        2. Channel number
        3. Velocity
        4. Offset frequency
        5. Rest frequency
        6. Image frequency
        7. Fitted profiles if any - fit(i),i=0,nline - in column 7+i
    The output table can be put later in a formatted way using  GILDAS  task
    LIST in you need.

    The table may be used as input to GreG to produce fancy plots, or by the
    GILDAS software for other applications. In particular, SIC variables can
    be used to subtract any of the fits from the spectrum to produce residu-
    als if needed.  For plots, note that you  can  produce  essentially  the
    same within CLASS, except under very special circumstances, and moreover
    that only CLASS can handle the different X-unit simultaneously.

    For the formatted list, less information is written (and it takes longer
    to write it of course) :
        1. Current X unit in column 1
        2. Intensity in column 2
        3. Fitted profiles - (fit(i),i=0,nline) - in column 3+i

        For the /READ option, columns are X 1 Y 2 by default but can be
        changed. If X 0 is given as zero, then only Y is read and X is
        filled with channel numbers. Only very coarse header information
        is filled in. A lot of complementary header editing will often
        be needed.