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FIND

        [DISPLAY\]FIND Fmin Fmax [/SPECIES Name]

    Select spectral lines in the range Fmin to Fmax (in MHz) and return them
    in the LINES% structure.

    LINES%SPECIES  contains  the  name  of  the  species  for   each   line.
    LINES%FREQUENCY  holds  its  frequency in MHz.  LINES%LINES contains the
    full line names, including  the  transition.   LINES%PLOT  contains  the
    string  to  be  used in graphic display, with codes for superscripts and
    subscrips when needed.

    The sign of LINES%N encodes the number of selected  lines  and  type  of
    catalog which was used.

    The rest of the structure depends on the catalog type.

    If  the catalog is in the ASTRO format, LINES%N is negative and contains
    the opposite of the number of lines.

    If the catalog is in the LINEDB format (see HELP LINEDB\  for  details),
    LINE%N  is  positive  and contains the number of selected lines. Quantum
    numbers, energy levels and line strengths are  also  available  in  this
    case, allowing a more precise selection.


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Gildas manager 2023-06-01