> Any way that you can make your keys numeric? Then you can run np.diff on > that first column, and use the indices of nonzero entries (np.flatnonzero) > to know where values change. With a +1/-1 offset (that I am too lazy to > figure out right now ;) you can then index into the original rows to get > either the first or last occurrence of each run.
I'll give it some thought, but one of the elements of the key is definitely a (short, < six characters) string. Hashing it probably wouldn't work, too great a chance for collisions. S _______________________________________________ NumPy-Discussion mailing list NumPy-Discussion@scipy.org https://mail.scipy.org/mailman/listinfo/numpy-discussion
