samplesize: 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.

Author
Ralph Scherer
Date of publication
2015-07-01 06:11:47
Maintainer
Ralph Scherer <shearer.ra76@gmail.com>
License
GPL (>= 2)
Version
0.2-2
URLs

View on CRAN

Man pages

n.ttest
n.ttest computes sample size for paired and unpaired t-tests.
n.wilcox.ord
Sample size for Wilcoxon-Mann-Whitney for ordinal data
samplesize-package
Computes sample size for several two-sample tests

Files in this package

samplesize
samplesize/NAMESPACE
samplesize/R
samplesize/R/n.ttest.R
samplesize/R/n.wilcox.ord.R
samplesize/README.md
samplesize/MD5
samplesize/DESCRIPTION
samplesize/man
samplesize/man/n.wilcox.ord.Rd
samplesize/man/n.ttest.Rd
samplesize/man/samplesize-package.Rd