samplesize (0.2-4)

Sample Size Calculation for Various t-Tests and Wilcoxon-Test.

Computes sample size for Student's t-test and for the Wilcoxon-Mann-Whitney test for categorical data. The t-test function allows paired and unpaired (balanced / unbalanced) designs as well as homogeneous and heterogeneous variances. The Wilcoxon function allows for ties.

Maintainer: Ralph Scherer
Author(s): Ralph Scherer

License: GPL (>= 2)

Uses: Does not use any package

Released over 2 years ago.