trend_test: Trend test for ordered r x 2 contingency table

In idea-labs/comsldpsy: Data and analysis code for Visser et. al (2020)

Description

Computes trend test based on the generalized linear model with logit link function (logistic regression) and the Wald test statistic.

Usage

trend_test(data, x, y, alpha = 0.05)

Arguments

data	tbl. Input data
x	character. Name of a categorical variable with r levels
y	character. Name of a categorical variable with 2 levels
alpha	double. The nominal level, Default: 0.05

Details

Procedure as described in Fagerland, Lydersen, & Laake (2017).

The function is an adaptation of the Matlab script provided by Fagerland et al. (2017) on the book's website.

Value

tbl. Data frame with Wald test statistic and p-value as well as estimate for the trend (odds ratio) and associated Wald confidence intervals

References

Fagerland, M., Lydersen, S., & Laake, P. (2017). Statistical analysis of contingency tables. London: Chapman and Hall.

idea-labs/comsldpsy documentation built on April 14, 2020, 4:28 p.m.