The test table is used during
model validation by the Dynamic Lift report. You can create a test table by taking a sampling of rows
from the original train table, updated train table, or any model validation table
that is set aside at model training time. This DATA step randomly selects approximately
25% of the train table to create the test table:
data hmeqtabl.test;
set hmeqtabl.train;
if ranuni(1234) < 0.25;
run;