food {CMHNPA}

Food data

Description

Categorical responses made by 15 subjects for two different prices of the same food product. The data is from a CMH design.

Usage

data(food)

Format

A data frame with 30 rows and three columns.

price

a factor showing two price points for the product

decision

a factor indicating the decision of either buy, undecided, or not_buy the product

subject

a factor showing the individual making a decison about the product

References

Rayner, J.C.W and Livingston, G. C. (2022). An Introduction to Cochran-Mantel-Haenszel Testing and Nonparametric ANOVA. Wiley.

Examples

attach(food)
b_hj = matrix(1:3,ncol=15,nrow=3)
CMH(treatment = price, response = decision, strata = subject, b_hj = b_hj,
test_OPA = FALSE, test_C = FALSE)