Description Usage Format References Examples
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.
1 | data("renalstone")
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A data frame with 3513 rows and 3 columns.
Hazra, Avijit, and Nithya Jaideep Gogtay. 2016. “Biostatistics Series Module 4: Comparing Groups – Categorical Variables.” In Indian Journal of Dermatology
1 2 | data(renalstone)
xtabs(~stone+age+gender, data = renalstone)
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