[Numpy-discussion] finding close together points.
Thu Nov 12 11:01:33 CST 2009
Peter Schmidtke wrote:
> On Tue, 10 Nov 2009 16:07:32 -0800, Christopher Barker
> <Chris.Barker@noaa.gov> wrote:
>> I have a bunch of points in 2-d space, and I need to find out which
>> pairs of points are within a certain distance of one-another (regular
>> old Euclidean norm).
> How big is your set of points?
Could be 100s of thousands, maybe ever millions. That's why O(N^2) is
Christopher Barker, Ph.D.
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
More information about the NumPy-Discussion