The
distributional method for dichotomizing normal data
(Based on Peacock et al 2012, Sauzet et al 2014 and Sauzet et al 2015)
Update
22.01.2016
The distributional method for the dichotomisation
of continuous outcome has been developed to allow for the presentation of
comparison of proportion after a comparison of mean has been performed (t-test
(distdicho) or regression (reg_distdicho)).
The method can be applied under the hypothesis that the data is normally
distributed with equal variance between the groups (for t-test just two groups
can be compared, for regression there is no limit) or with unequal variances.
If there are evidence of perturbation to the normal distribution the a skew-normal method can be used (sk_distdicho).
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Stata package
A complete package of Stata commands is now
available to install directly from Stata. The package
has been built with Stata 13 and some command will not work
on earlier versions. Please contact me if you need the commands for earlier
versions
In stata
please type the following:
net describe distdicho, from (http://wwwhomes.uni-bielefeld.de/osauzet/paket/)
And check regularly for update
adoupdate distdicho
A working paper describing the
commands and examples is available here for
download
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R package
A R-package is also in preparation so
check this page for update.
BUGS
If you have been using the program provided in this
page and found bugs or you have any comments concerning them please write to odile dot sauzet at uni – bielefeld
dot de
Thank you