Help System (web edition)

SHADING=<list of shading values 0,1,2,...> 
(in PLOT operation for bar/pie charts) specifies a shading (color) for
each section of bars/pies. The values 0,1,2,... usually refer to tones
from "light" to "dark" on paper.
In GPLOT values 0,1,2,...,15 correspond to certain colors which can be
seen by activating the sucro command
/SHAD
To match these GPLOT colors to those used in earlier Survos, set the
system parameter 'color98' to value 1 in SURVO.APU. color98=0 should
be otherwise preferred to. This parameter can be set temporarily in
any GPLOT scheme by the specification C98=<0 or 1>.
In both PostScript and screen plots the colors may be set individually
by COLOR(n) specifications (in SURVO MM version 3.22+)

  1 = COLOR(n) specifications 
  2 = Negative values in SHADING 
  3 = SHADEMAX specification 
  4 = Positions of sectors in pie charts 
  5 = Color of texts (VALUES,LABELS) on shaded areas 
  P = More information on plotting