Re: permute doesn't delete singletons

[Jonathan Stickel]

You can use the squeeze command:


octave:14> x = zeros(10,1,2);
octave:15> z = permute(x,[3,1,2]);
octave:16> size(z)
ans =

           2          10           1

octave:17> z = squeeze(permute(x,[3,1,2]));
octave:18> size(z)
ans =

           2          10


I'm not sure if the maintainers are interested in modifying permute to 
automatically "squeeze" the dimensions.

Jonathan


Tom Holroyd wrote:
> Hi.
>
> Trailing singleton dimensions are automatically removed, right?  Like,
>
> octave:67> x=zeros(10,3,1);
> octave:68> size(x)
> ans =
>
>   10   3
>
> But if I do:
>
> octave:75> x=zeros(10,1,2);
> octave:76> z=permute(x,[3,1,2]);
> octave:77> size(z)
> ans =
>
>    2  10   1
>
> I get a result with a trailing singleton dimension.  I'm porting some
> MATLAB code that expects the result of permute above to be size 2 10,
> which it is under MATLAB.  Can permute be changed to remove the 
> singleton dimension?



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