When estimating multiple matrices, it is ideal to have an individual count set and ICP file for each matrix. To estimate multiple matrices when each matrix has an individual screenline and ICP file, the user simply needs to add these to the input control box and set the NCLASSES parameter to the total number of matrices to be estimated, and no other modifications need to be made. Using this method, the Analyst Drive program will go through and estimate each matrix individually in a sequential fashion. If using the MPICORES parameter with ANALYST2_64, the value for MPICORES may be as high as the value for NCLASSES. When using MPICORES, Analyst Drive will simultaneously estimate the number of matrices defined by the MPICORES parameter in a parallel loop until all matrices have been estimated.