Description Usage Format Source Examples
Pre- and post-treatment scores on abundance of leprosy for patients receiving different treatments (Senedecor and Cochran, 1967).
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A data frame with 30 observations on the following 3 variables.
treatment
Treatment type: A
, D
or F
(placebo), a character vector
pre
Pre-treatment score, a numerical vector
post
Post-treatment score, a numerical vector
Snedecor, G.W. and Cochran, W.G. (1967) Statistical Methods, Iowa State University, Ames, p.421.
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