On 12/6/10 1:00 PM, Wai Yip Tung wrote: > Thank you for the quick response and Christopher's explanation on the > design background.
you're welcome. > But if adding row build a new array, this will lead to O(n^2) complexity. if you are adding a lot of rows one at a time, yes, you can have performance issues -- though re-allocating data is pretty fast, too -- maybe it won't matter. If it does, consider the accumulator code I sent, or use it as inspiration to write your own. If you do improve it, please send your improvements back to me. -Chris -- Christopher Barker, Ph.D. Oceanographer Emergency Response Division NOAA/NOS/OR&R (206) 526-6959 voice 7600 Sand Point Way NE (206) 526-6329 fax Seattle, WA 98115 (206) 526-6317 main reception [email protected] _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
