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st: -jonter- updated on SSC

From   Joseph Coveney <>
To   Statalist <>
Subject   st: -jonter- updated on SSC
Date   Wed, 29 Nov 2006 11:04:45 +0900

Thanks to Kit Baum, an updated -jonter- is posted on SSC.

The major change is that -jonter- is now an r-class program, returning its
test statistics and p-value in return scalars.  In addition, the display of
U statistics by individual level of the by-variable is now suppressed by

The first change was prompted by a user who wanted to use -jonter-
with -permute- in small datasets.  The second change provides for less
voluminous output when -jonter- is used with by-variables that have many
levels, such as with continuous data.  There is a new -verbose- option for
those users who would like to see individual U statistics.

The package now has an auxiliary do-file ( that illustrates
usage of -jonter- with -permute-.  It also illustrates two alternatives that
are mentioned in the help file:  -nptrend- and -ktau-.  These latter
commands are official in Stata, and would be good choices in essentially any
circumstance in which -jonter- can be used.  -jonter- will benefit users who
are familiar with the Jonckheere-Terpstra test, but who have not yet been
made aware of these alternatives.  -jonter- will also benefit users who need
to reproduce results of an analysis where the Jonckheere-Terpstra test had
been used.

Joseph Coveney

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