A partition is all or
part of a logical file. The Partition Data task enables you to create
up to four partitions created by randomly sampling the input data.
Partitions can be used to develop a model. In this case, you want
to train the model on part of the data and reserve some of the data
for testing. Using the Partition Data task, you can save all the partitions
to one output data set or save each partition in a separate data set.