Prostate {lasso2} | R Documentation |
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 data frame with 97 rows and 9 columns.
data(Prostate)
The data frame has the following components:
lcavol
lweight
age
lbph
svi
lcp
gleason
pgg45
lpsa
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.
data(Prostate) attach(Prostate) pairs(Prostate, col = 1+svi, pch = gleason - 5, main = paste("Prostate data, n = ", nrow(Prostate))) detach() l1c.P <- l1ce(lcavol ~ ., data = Prostate) coef(l1c.P)[coef(l1c.P) != 0] ## only age, lcp, lpsa (+ intercept) summary(l1c.P)