h_prop_diff_test: Helper functions to test proportion differences

In tern: Create Common TLGs Used in Clinical Trials

Helper functions to test proportion differences

Description

Helper functions to implement various tests on the difference between two proportions.

Usage

prop_chisq(tbl, alternative = c("two.sided", "less", "greater"))

prop_cmh(
  ary,
  alternative = c("two.sided", "less", "greater"),
  transform = c("none", "wilson_hilferty")
)

prop_schouten(tbl, alternative = c("two.sided", "less", "greater"))

prop_fisher(tbl, alternative = c("two.sided", "less", "greater"))

Arguments

tbl	(matrix) matrix with two groups in rows and the binary response (TRUE/FALSE) in columns.
alternative	(string) whether two.sided, or one-sided less or greater p-value should be displayed.
ary	(array, 3 dimensions) array with two groups in rows, the binary response (TRUE/FALSE) in columns, and the strata in the third dimension.
transform	(string) either none or wilson_hilferty; specifies whether to apply the Wilson-Hilferty transformation of the chi-squared statistic.

Value

A p-value.

Functions

• prop_chisq(): Performs Chi-Squared test. Internally calls stats::prop.test().

• prop_cmh(): Performs stratified Cochran-Mantel-Haenszel test, using stats::mantelhaen.test() internally. Note that strata with less than two observations are automatically discarded.

• prop_schouten(): Performs the Chi-Squared test with Schouten correction.

• prop_fisher(): Performs the Fisher's exact test. Internally calls stats::fisher.test().

See Also

prop_diff_test() for implementation of these helper functions.

Schouten correction is based upon \insertCiteSchouten1980-kd;textualtern.

tern documentation built on Dec. 18, 2025, 9:07 a.m.