summary.median Function (GPL)
Syntax
summary.median(<algebra>)
or
summary.median(<binning function>)
or
summary.median(<statistic function>)
<algebra>. Graph algebra, such as x*y
.
Refer to Brief Overview of GPL Algebra for an introduction to graph algebra.
<binning function>. A binning function.
<statistic function>. Another statistic function.
The result of the embedded statistic is used to calculate summary.median
.
Description
Calculates the median, which is the value above and below which
half of the cases fall. The result is equivalent to summary.percentile
with
an alpha of 0.5. If the function is evaluating graph algebra, the
median of the analysis variable is returned. For more information
about analysis variables, see the discussion in Brief Overview of GPL Algebra .
Examples
ELEMENT: interval(position(summary.median(jobcat*salary)))
Statistic Functions
See GPL Functions .