Help System (web edition)

MINVALUE=<minvalue> 
(in PLOT operation for HBAR and VBAR graphs) converts barheights
below <minvalue> to 0. Default is MINVALUE=-1e30, i.e. no conversion.
MINVALUE can be used for clipping bars at the minimum SCALE value.
For example, to plot data 200,250,230 as a bar chart in scale
SCALE=200(10)250, MINVALUE=200 could be used.
  P = More information on plotting