Batch Menu Option (1) Random Testing This option allows the user to create random partitions of a training set file into two files: a file used for training and another utilized for testing. Patterns in both files are disjoint from one another. The user sets the starting, ending partition sizes and the delta stepsize. MPIL will perform n-fold crossvalidation for the various partition sizes. Results are written out to the user specified output file. The parameter n can be set by the user from within the Parameters menu option (select Num. Batch Runs).