Prostate data of Section 3.3 and later

prostmat.csv is the 6033x102 data matrix discussed at the top of page 33.
The first 50 columns are the genetic activity measurements for the 50 control subjects,
while the last 52 columns represent the prostate cancer subjects.
The data can be read directly into R via the command
prostmat <- read.csv("http://hastie.su.domains/CASI_files/DATA/prostmat.csv")

prostz.txt is the vector of 6033 z-values pictured in Figure 3.4. These were obtained as decribed on page 272.