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## Re: subarray(x, d, k) for picking all k-th elements of d-th dimension o

**From**: |
Jaroslav Hajek |

**Subject**: |
Re: subarray(x, d, k) for picking all k-th elements of d-th dimension of x ? |

**Date**: |
Fri, 24 Apr 2009 13:10:36 +0200 |

On Fri, Apr 24, 2009 at 12:37 PM, G.. <address@hidden> wrote:
>
>
>* Jaroslav Hajek-2 wrote:*
>*>*
>*> Well, no, but you can write it:*
>*>*
>*> idx = {':'}(ones (1, max (ndims (x), d))); idx{d} = k; % or anything*
>*> y = x(idx{:});*
>*>*
>
>* Great! I think I got a glimpse about indexing now. I never found it*
>* documented.*
>
>* G.*
>
I think it actually is documented - maybe you weren't aware that you
can use a cs-list as index, but this more or less follows from the
docs, I think. Another trick is maybe that you can use the ':' string
instead of : - I think that's documented too, though I'm not sure. The
rest is just thinking...
In any case, feel free to improve the docs, clarify anything, provide
any examples you find useful. I think there's nobody there thinking
that Octave's documentation is too detailed.
cheers
--
RNDr. Jaroslav Hajek
computing expert & GNU Octave developer
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz

**subarray(x, d, k) for picking all k-th elements of d-th dimension of x ?**, *G..*, `2009/04/24`
**Re: subarray(x, d, k) for picking all k-th elements of d-th dimension of x ?**, *Jaroslav Hajek*, `2009/04/24`
**Re: subarray(x, d, k) for picking all k-th elements of d-th dimension of x ?**, *G..*, `2009/04/24`
**Re: subarray(x, d, k) for picking all k-th elements of d-th dimension of x ?**,
*Jaroslav Hajek* **<=**
**Re: subarray(x, d, k) for picking all k-th elements of d-th dimension of x ?**, *Jaroslav Hajek*, `2009/04/24`
**Re: subarray(x, d, k) for picking all k-th elements of d-th dimension of x ?**, *G..*, `2009/04/24`
**Re: subarray(x, d, k) for picking all k-th elements of d-th dimension of x ?**, *Jaroslav Hajek*, `2009/04/24`

**Re: subarray(x, d, k) for picking all k-th elements of d-th dimension of x ?**, *Francesco Potorti`*, `2009/04/24`