R/PowerTOST and other packages [Power / Sample Size]

posted by Helmut Homepage – Vienna, Austria, 2013-02-20 15:04 (4449 d 14:55 ago) – Posting: # 10077
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Dear Ken!

❝ Is PowerTost a commercial software ? Do we need to subscribe to gain access to this wonderful software ?


[image]No, it is free software (GNU General Public License 2/3). The author is a member of the forum, Detlew Labes. :ok:

First you have to install the stat­is­tical soft­ware R (mirror closest to Malay­sia is maintained at the Department of Statistics and Applied Probability of the National University of Singapore; available for Linux, MacOS X, and Windows).

Once installed start the R-console > Packages > Install package(s)… > CRAN mirror > OK. You need two packages: mvtnorm and PowerTOST (select them in the drop-down list).
To start type load(PowerTOST)* library(package) or require(PowerTOST). Type help(package=PowerTOST) in the R-console to display the documentation in your bowser.

There are some other packages which might be of interest. Incomplete list:

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