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samplesize (version 0.1-5)

a collection of sample size functions

Description

Computes sample size for Student's t-test with equal and nonequal variances and Wilcoxon-Mann-Whitney test with and without ties

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Version

Install

install.packages('samplesize')

Monthly Downloads

315

Version

0.1-5

License

GPL (>= 2)

Maintainer

Ralph Scherer

Last Published

January 10th, 2010

Functions in samplesize (0.1-5)

n.paired.t.test

Sample size for paired Student's t-test
n.wilcox.no.ties

Sample size for Wilcoxon-Mann-Whitney test without ties
n.welch.test

Sample size for Student's t-test with Welch approximation
n.indep.t.test.eq

Sample size for independent Student's t-test with equal group size
n.wilcox.w.ties

Sample size for Wilcoxon-Mann-Whitney test with ties
samplesize-package

Computes sample size for Student's t-test, Student's t-test with Welch approximation and Wilcoxon-Mann-Whitney test
n.indep.t.test.neq

Sample size for independent Student's t-test with unequal group size