Robert,
Thanks so much! This is exactly what I needed.
- Jack
> Ah, okay. It's a bit tricky, though. Yes, you need to use fancy
> indexing. Since axis you want to be index fancifully is not the first
> one, you have to be more explicit than you might otherwise want. For
_
2008/7/17 Robert Kern <[EMAIL PROTECTED]>:
> So the way fancy indexing interacts with slices is a bit tricky, and
> this is why we couldn't use the nicer syntax of cube[:,:,idx_k]. All
> axes with fancy indices are collected together. Their index arrays are
> broadcasted and iterated over. *For eac
On Thu, Jul 17, 2008 at 03:16, Stéfan van der Walt <[EMAIL PROTECTED]> wrote:
> Hi Robert
>
> 2008/7/17 Robert Kern <[EMAIL PROTECTED]>:
>> In [42]: smallcube = cube[idx_i,idx_j,idx_k]
>
> Fantastic -- a good way to warm up the brain-circuit in the morning!
> Is there an easy-to-remember rule that
Hi Robert
2008/7/17 Robert Kern <[EMAIL PROTECTED]>:
> In [42]: smallcube = cube[idx_i,idx_j,idx_k]
Fantastic -- a good way to warm up the brain-circuit in the morning!
Is there an easy-to-remember rule that predicts the output shape of
the operation above? I'm trying to imaging how the output w
On Wed, Jul 16, 2008 at 4:08 PM, Robert Kern <[EMAIL PROTECTED]> wrote:
> Ah, okay. It's a bit tricky, though. Yes, you need to use fancy
> indexing. Since axis you want to be index fancifully is not the first
> one, you have to be more explicit than you might otherwise want. For
> example, it wou
On Wed, Jul 16, 2008 at 17:12, <[EMAIL PROTECTED]> wrote:
> Robert,
>
> I can understand how this works if K is a constant time value but in my case
> K varies at each location in the two-dimensional slice. In other words, if I
> was doing this in a for loop I would do something like this
>
> fo
: [Numpy-discussion] Numpy Advanced Indexing Question
On Wed, Jul 16, 2008 at 16:45, <[EMAIL PROTECTED]> wrote:
> Greetings,
>
> I have an I,J,K 3D volume of amplitude values at regularly sampled time
> intervals. I have an I,J 2D slice which contains a time (K) value at each I,
&g
On Wed, Jul 16, 2008 at 16:45, <[EMAIL PROTECTED]> wrote:
> Greetings,
>
> I have an I,J,K 3D volume of amplitude values at regularly sampled time
> intervals. I have an I,J 2D slice which contains a time (K) value at each I,
> J location. What I would like to do is extract a subvolume at a consta
Greetings,
I have an I,J,K 3D volume of amplitude values at regularly sampled time
intervals. I have an I,J 2D slice which contains a time (K) value at each I, J
location. What I would like to do is extract a subvolume at a constant +/- K
window around the slice. Is there an easy way to do thi
