> Except it doesn’t seem to meet your original spec, which retrieved > the first item of each *run* of an index value?
No, just what I was looking for. As I indicated in my original post, "I'm probably going to botch the description..." It's quite likely that my problem specification wasn't as crisp as it should have been. S _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org https://mail.scipy.org/mailman/listinfo/numpy-discussion