Drexel dragonThe Math ForumDonate to the Math Forum


Math Forum
 Ask Dr. Math
 Discussions
 Internet Newsletter
 MathTools
 Problems of the Week
 Teacher2Teacher
 Teacher Exchange
 Workshops

Search All of the Math Forum:
Browse our Internet Mathematics Library

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Software » comp.soft-sys.matlab

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

Advanced Search
Reply to this Topic Reply to this Topic

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
Ha

Posts: 79
Registered: 11/30/09
Re: How to retrieve the given column of the data of arbitrary size?
Posted: Nov 13, 2012 9:54 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

"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.

Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2013. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.