1. Preparing S+ for packages

A few steps are necessary in order to be able to load packages in S+.

  1. Start S+ in you usual way.
  2. In the S+ command prompt (what is it?), type: 
    install.pkgutils()
library(pkgutils)
  3. Valid the commands by pressing Enter on your keyboard.

2. Manual installation

If the automatic installation fails, or if you prefer to download an install a version manually, follow the next steps:

A. Downloading pROC

Download the "binary" file for your platform and save it in your S+ working directory (where is it?):

Where did my download go?

B. Installing pROC

Go back to the S+ command prompt and type:

install.packages("pROC_1.4.9_S_WIN386.zip", repos=NULL)

or

install.packages("pROC_1.4.9_S_source.zip", repos=NULL)

And valid with Enter.

Carefully check the output. A warning about a missing 'lib' argument is OK, however make sure there is no error (denoted "Problem") in the output.

3. Loading pROC

You need to load the package within S+ to enable pROC. Use the File menu, item Load Library… (Windows only), or enter the command:

library(pROC)

Further comments

The package must be loaded each time you start S+. You may put the line above in a file named S.init in your S+ home directory to have it automatically loaded on startup (see S+ User's Guide chapter 11 for more details).

Updating pROC

Repeat the Manual installation steps described above except the install.pkgutils() command.