[Numpy-discussion] Fastest distance matrix calc
Christopher Barker
Chris.Barker@noaa....
Mon Apr 16 16:13:00 CDT 2007
Timothy Hochberg wrote:
> results = empty([M, N], float)
> # You could be fancy and swap axes depending on which array is larger, but
> # I'll leave that for someone else
> for i, v in enumerate(x):
> results[i] = sqrt(sum((v-y)**2, axis=-1))
you can probably use numpy.hypot(v-y) to speed this up more...
-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
Chris.Barker@noaa.gov
More information about the Numpy-discussion
mailing list