renalstone: Risk of Renal Stone Data for Cochran-Armitage Trend Test
Description
Presents the frequencies of individuals at high risk of renal
calculi according to age and gender. This a demo dataset for
Cochran-Armitage trend test for investigating whether there is a linear
trend between the proportion of individual with renal stone and ages.
A data frame with 3513 rows and 3 columns (stored as a tibble).
gender
the individual's gender, "male" or "female".
stone
whether the individual has a renal stone, "yes" or "no".
age
the age group, an ordered factor: "30-39" < "40-49" < "50-59".
References
Hazra, Avijit, and Nithya Jaideep Gogtay. 2016. "Biostatistics
Series Module 4: Comparing Groups - Categorical Variables." In Indian Journal
of Dermatology.