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SCALE=<min.value>,<2nd value>,...,<max.value> 
(in PLOT operation for bar charts) defines the scale and the scale
labels on the X axis (HBAR,%HBAR,MHBAR) or on the Y axis (VBAR,%VBAR,
MVBAR).
If SCALE is not given, scaling and labelling is automatic.
Observe that negative values are allowed in MHBAR and MVBAR charts
only.
In various HBAR type charts, the labels of cases (on the `Y axis') are aligned
to the left according to the longest label. In variable pitch fonts and
long labels this convention is not always good. Therefore an extra
specification YSCALEPOS=<x_coord> can be given as the relative start
position of labels.
In pie charts, the maximum size of the pies can be defined by giving a
specification MAX=<value> where <value> typically exceeds the sum of
data values in the largest pie.
  P = More information on plotting