Prostate

prostate

Data from a study by by Stamey et al. (1989) to examine the
 association between prostate specific antigen (PSA) and several
 clinical measures that are potentially associated with PSA in men who
 were about to receive a radical prostatectomy. The variables are as
 follows:
<ul>
<li>X: A design matrix with 97 instances (rows) and 8
 predictor variables (columns). The columns are:<ul>
<li>lcavol: Log cancer volume</li>
<li>lweight: Log prostate weight</li>
<li>age: The man's age</li>
<li>lbph: Log of the amount of benign hyperplasia</li>
<li>svi: Seminal vesicle invasion; 1=Yes, 0=No</li>
<li>lcp: Log of capsular penetration</li>
<li>gleason: Gleason score</li>
<li>pgg45: Percent of Gleason scores 4 or 5</li>
</ul></li>
<li>y: Log PSA</li>
</ul>

datasets

Fits regularization paths for linear regression, GLM, and Cox
regression models using lasso or nonconvex penalties, in particular the
minimax concave penalty (MCP) and smoothly clipped absolute deviation (SCAD)
penalty, with options for additional L2 penalties (the "elastic net" idea).
Utilities for carrying out cross-validation as well as post-fitting
visualization, summarization, inference, and prediction are also provided.

Prostate: Factors associated with prostate specific antigen

Description

Usage

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References