The autoscale function determines a
set of x_min, x_max, x_tic, x_maj, y_...
according to some rules.
If no parameter is supplied, all active SCANs are auto-scaled.
/max=ntic
The maximum number of major tics.
/noreverse
Suppresses the feature that the direction of the x-axis changes with
the direction of the data.
/range=np[/discrete]
Use only the last np points for the calculation of the
window limits. With /discrete in addition, autoscale
is executed only, if the current scan index is a multiple of np.
These qualifiers are used by the ZOOM function.
/window
The window limits are not changed. Only the tic distance
and the major tic mark factor are adjusted.
/x,/y
If /y is supplied, autoscaling is done only for the y-axis.
The same applies for /x.