prop.trend.test {stats} R Documentation

Test for trend in proportions

Description

Performs chi-squared test for trend in proportions, i.e., a test asymptotically optimal for local alternatives where the log odds vary in proportion with score. By default, score is chosen as the group numbers.

Usage

prop.trend.test(x, n, score = seq_along(x))


Arguments

 x Number of events n Number of trials score Group score

Value

An object of class "htest" with title, test statistic, p-value, etc.

Note

This really should get integrated with prop.test

Author(s)

Peter Dalgaard

prop.test
smokers  <- c( 83, 90, 129, 70 )