These data come from a study that examined the correlation between the level of prostate specific antigen and a number of clinical measures in men who were about to receive a radical prostatectomy. It is a data frame with 97 rows and 9 columns.
data("Prostate")The data frame has the following components:
lcavol : log(cancer volume)
lweight : log(prostate weight)
age : age
lbph : log(benign prostatic hyperplasia amount)
svi : seminal vesicle invasion
lcp : log(capsular penetration)
gleason : Gleason score
pgg45 : percentage Gleason scores 4 or 5
lpsa : log(prostate specific antigen)
Stamey, T.A., Kabalin, J.N., McNeal, J.E., Johnstone, I.M., Freiha,
F., Redwine, E.A. and Yang, N. (1989).
Prostate specific antigen in the diagnosis and treatment of adenocarcinoma
of the prostate: II. radical prostatectomy treated patients,
Journal of Urology, 141(5), 1076--1083.
This dataset also appears in the R-package: lasso2.
Lokhorst, J., Venables, B. and Turlach, B. (2011).
lasso2: L1 contstrained estimation aka 'lasso',
published on R CRAN website:
http://cran.r-project.org/web/packages/lasso2/index.html.