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The Power Calculator tool is provided under a free-of-charge, open-source license (A-GPL3). All we require is that you cite/attribute the following in any work that benefits from this application.

Citing the Web Application

QFAB Bioinformatics. (2015). ANZMTG Statistical Decision Tree, Power Calculator. (Version 1.0) [Web Application]. Retrieved from http://www.anzmtg.org/stats/PowerCalculator

Citing the R package "pwr"

The Power Calculator tool is based on the code from the PWR R package. Stephane Champely (2012). Pwr: Basic functions for power analysis. R package version 1.1.1. http://CRAN.R-proejct.org/package=pwr