I needed help with my script, all suggestions would be very helpful. Suppose that I have a 100x50 matrix. I need to partition it into 10 submatrices or blocks, and operate on the first submatrix (say 10 first rows) in a for loop, record the results; then move on to the next 10 rows, etc. In essence, these submatrices are my different resampled data sets that I need to treat as separate and operate upon in my for loop, and record the results for each sample. How can I index and refer to these samples? Thanks in advance for all help.