Jeff, > Is there a better way to tell if the individual fields are masked than > accessing ._fieldmask?
That depends. If you need to access you mrecarray record by record (by rows), yes you have to check the corresponding ._fieldmask. If instead you can process your array field by field (by columns), you don't need to: each field (column) will be a masked array, and you can just check its mask. Let me know if you have more problems. HIH P. _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion