17.14 SPECTRUM

[DISPLAY\]SPECTRUM OutSpec InCube [Mask] [/CORNER Imin Imax Jmin Jmax] [/PLANE First Last] /MEAN or /SUM

Compute a Spectrum, stored in variable OutSpec from an input data cube stored in variable InCube, by summing (if /SUM is present) or averaging (if /MEAN is present). OutSpec must be an existing Real array of size equal to the number of selected channels.

The 2-D region overwhich the summation runs is determined by the following rules:

   - the mask contained in variable MaskName if specified
   - the region enclosed by the current GreG polygon is any
   - the whole 2-D region otherwise

The region is further restricted by the corners specified by option /CORNER.