The STANDARD function is part of the IMLMLIB library. The STANDARD function standardizes each column of an matrix. Each column of the input matrix is standardized to have a mean of zero and unit standard deviation, as shown in the following example:

use sashelp.class;
read all var _NUM_ into X[colname=varNames];
close sashelp.class;
stdx = standard( x );
print "Standardized Data", stdx[colname=varnames];