Mon, 05 Jul 2010 16:03:56 +0200, Steve Schmerler wrote:
[clip]
> To sum up, I find it a bit subtle that
> a = a - a[...,0][...,None]
> works as expected, while
> a -= a[...,0][...,None]
> does not.
> I guess the reason is that in the latter case (and the corresponding
> loop), a[...,0] itse
Hi
I stumbled upon some numpy behavior which I was not aware of.
Say I have an array of shape (2,2,3) and want to subtract the sub-array
a[...,0] of shape (2,2) from each a[...,i], i=0,1,2 .
## ok ##
In [1]: a=arange(2*2*3).reshape(2,2,3)
# Copy the array to be subtracted.
In [
