prostate: Prostate Cancer Data
In gencve: General Cross Validation Engine

Description Usage Format Source Examples

Data to examine 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.

1	data(prostate)

A data frame with 97 observations on the following 10 variables.

lcavol: log cancer volume
lweight: log prostate weight
age: in years
lbph: log of the amount of benign prostatic hyperplasia
svi: seminal vesicle invasion
lcp: log of capsular penetration
gleason: a numeric vector
pgg45: percent of Gleason score 4 or 5
lpsa: response

Stamey, T., Kabalin, J., McNeal, J., Johnstone, I., Freiha, F., Redwine, E. and Yang, N (1989) Prostate specific antigen in the diagnosis and treatment of adenocarcinoma of the prostate II. Radical prostatectomy treted patients, Journall of Urology 16: 1076–1083.

1	str(prostate)

'data.frame':	97 obs. of  9 variables:
 $ lcavol : num  -0.58 -0.994 -0.511 -1.204 0.751 ...
 $ lweight: num  2.77 3.32 2.69 3.28 3.43 ...
 $ age    : int  50 58 74 58 62 50 64 58 47 63 ...
 $ lbph   : num  -1.39 -1.39 -1.39 -1.39 -1.39 ...
 $ svi    : int  0 0 0 0 0 0 0 0 0 0 ...
 $ lcp    : num  -1.39 -1.39 -1.39 -1.39 -1.39 ...
 $ gleason: int  6 6 7 6 6 6 6 6 6 6 ...
 $ pgg45  : int  0 0 20 0 0 0 0 0 0 0 ...
 $ lpsa   : num  -0.431 -0.163 -0.163 -0.163 0.372 ...