Hastie et al. (2001) describe a cancer research study that attempted to associate prostate specific antigens and and a number of prognostic measures in the context of advanced prostate cancer.
Data in the experiment were collected from 97 men who were about to undergo radial prostectomies.
data(prostate)
A data frame with 97 observations on the following 4 variables.
PSA
Serum prostate-specific albumin level (mg/ml).
vol
Tumor volume (cc).
weight
Prostate weight (g).
Gleason
Pathologically determined grade of disease. Summed scores were either 6, 7, or 8 with higher scores indicating worse prognosis.
Hastie, T., R. Tibshirani, and J. Friedman (2009) The Elements of Statistical Learning: Data Mining, Inference, and Prediction, Second Edition. Springer.