islasso (version 1.6.0)

Prostate: Prostate Cancer Data

Description

This dataset originates from a study examining the correlation between prostate-specific antigen levels and various clinical measures in men scheduled for radical prostatectomy. It contains 97 rows and 9 variables.

Format

A data frame with 97 observations and 9 variables:

lcavol

Log of cancer volume

lweight

Log of prostate weight

age

Age of the patient

lbph

Log of benign prostatic hyperplasia amount

svi

Seminal vesicle invasion (binary)

lcp

Log of capsular penetration

gleason

Gleason score

pgg45

Percentage of Gleason scores 4 or 5

lpsa

Log of prostate-specific antigen

References

Stamey, T.A., Kabalin, J.N., McNeal, J.E., Johnstone, I.M., Freiha, F., Redwine, E.A., and Yang, N. (1989). Journal of Urology, 141(5), 1076-1083.

Examples

data(Prostate)
summary(Prostate)
cor(Prostate$lpsa, Prostate$lcavol)
if (FALSE) {
  fit <- islasso(lpsa ~ ., data = Prostate, family = gaussian())
  summary(fit, pval = 0.05)
  lambda.aic <- aic.islasso(fit, method = "AIC")
  fit.aic <- update(fit, lambda = lambda.aic)
  summary(fit.aic, pval = 0.05)
}