[Numpy-discussion] a[j, k], clipping j k to the edge if they're 1 off ?
Fri Aug 28 11:28:18 CDT 2009
On Fri, Aug 28, 2009 at 09:14, denis bzowy<email@example.com> wrote:
> I want to index a[j,k], clipping j or k to the edge if they're 1 off --
> def aget( a, j, k ):
> """ -> a[j,k] or a[edge] """
> # try:
> # return a[j,k] -- nope, -1
> # except IndexError:
> m,n = a.shape
> return a[ min(max(j, 0), m-1), min(max(k, 0), n-1)]
> This works but is both ugly and 5* slower than plain a[j][k].
> Is there a better way ?
"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
-- Umberto Eco
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