XYR X1 X2 Y1 Y2 -- Sets fixed ranges for plots
Parameters:
X1, X2 -- Range in X
Y1, Y2 -- Range in Y
If ranges are set to null ranges (e.g. 0,0) then the appropriate routines
will determine suitable ranges automatically. Otherwise the ranges set
by this routine take priority. Be careful when switching between
different types of plot because the ranges set by this routine may then be
inappropriate.
This command belongs to the class: display