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The REG Procedure |
If a P-P plot is requested (with a PLOT statement of the
form PLOT yvariable*NPP.),
the ith ordered value x(i) is represented
by a point with y-coordinate [i/n] and
x-coordinate ,where
is the mean of the nonmissing x-values and
is
the standard deviation. If an x-value has multiplicity k (that is,
x(i) = ... = x(i+k-1)), then only the
point
is displayed.
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