Re: Attacking ND arrays

[Jonathan Stickel]

Maybe you want to use the squeeze command.

octave:7> help squeeze
squeeze is a built-in function

 -- Built-in Function:  squeeze (X)
     Remove singleton dimensions from X and return the result.


Ryan Peterson wrote:
> Is there a "good" way to take 2d slices of ND matrices, either in 
> octave-forge or upcoming in future versions of octave?  Say I have a 4d 
> matrix named foo with 5 values in each direction and I want to look at a 
> slice of it.  Intuitively, I went for this:
>
> b=foo(4,3,:,:);
> imagesc(b)
>
> But got an error about transposing ND arrays.  I remember reading 
> something about someone doing this within C but am curious if and how 
> people have done this in octave.  The most straightforward method I can 
> think of is a loop but that can be time consuming.  Any 
> recommendations/suggestions?
>
> Thanks,
> Ryan Peterson
>
>
>
>
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Octave is freely available under the terms of the GNU GPL.

Octave's home on the web:  http://www.octave.org
How to fund new projects:  http://www.octave.org/funding.html
Subscription information:  http://www.octave.org/archive.html
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