[Tutor] summing arrays, along a dimension
bob gailer
bgailer at alum.rpi.edu
Sat Sep 15 04:00:34 CEST 2007
John wrote:
> >>> d
> array([[0, 0, 1],
> [1, 2, 3],
> [2, 2, 4],
> [3, 6, 8]])
> >>> e=reshape((d[:,-2]+d[:,-1]),(4,1))
> >>> e
> array([[ 1],
> [ 5],
> [ 6],
> [14]])
>
> is there a better way to accomplish this?
Which module are you using?
In APL we'd write +/d to reduce along the rows using +. Does the array
object have a similar "reduce" method?
More information about the Tutor
mailing list