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Topic: How to retrieve the given column of the data of arbitrary size?
Replies: 7   Last Post: Nov 18, 2012 6:14 PM

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 Ha Posts: 93 Registered: 11/30/09
Re: How to retrieve the given column of the data of arbitrary size?
Posted: Nov 13, 2012 9:54 AM

"Bruno Luong" <b.luong@fogale.findmycountry> wrote in message <k7tg96\$lq8\$1@newscl01ah.mathworks.com>...
> "Ha" wrote in message <k7qprc\$h2m\$1@newscl01ah.mathworks.com>...
> >
> > For instance, A is a 10x10x10x10 matrix, the 3rd column of the 2nd dimension of A is given by squeeze(A(:,3,:,:)). What if the size of A is arbitrary? A could be 10x10, 5x10x5, 10x10x5x5x10, ..., or anything else. How to write a function applicable to arbitray A?

>
> A = rand(2,3,4,5);
>
> n = ndims(A);
> ind(1:n) = {':'};
> ind{2} = 3; % ind = {':' 3 ':' ':' }
> A3=squeeze(A(ind{:}))
>
> % Bruno

Haha. I have writen a function in this manner.

Date Subject Author
11/12/12 Ha
11/12/12 Justin Ashmall
11/13/12 Ha
11/13/12 Bruno Luong
11/13/12 Jan Simon
11/14/12 Steven Lord
11/18/12 Paul
11/13/12 Ha