GREG

##
GREG

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

        Writes in file Name the contents of R buffer 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 R buffer. Only available for  formatted  files;  the
        equivalent  capability for GILDAS tables is available through a combina-
        tion 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
        Line #0 means sum of all lines. Then all lines are written individually.
        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

        The /FORMATTED option can be passed a custom Fortran format, e.g. to ex-
        tend    the    number   of   digits   in   each   column.   Default   is
        "(1PG17.9,12(1PG12.4))". Do not forget to provide the  enclosing  paren-
        theses and as many specifications as the number of columns (up to 13 de-
        pending on the number of line fits). For example  "(F15.6,1X,F15.4)"  is
        valid if no line fit is available.

        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  chan-
        nel  numbers. Only very coarse header information is filled in. A lot of
        complementary header editing will often be needed.