Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

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: index end-point to matrix
Replies: 6   Last Post: Feb 4, 2013 11:24 AM

Advanced Search

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

Posts: 1,266
Registered: 10/24/08
Re: index end-point to matrix
Posted: Jan 31, 2013 5:20 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

"Naresh Pai" wrote in message <kec3s0$gl9$1@newscl01ah.mathworks.com>...
> I have a vector with indices, for e.g.
>
> b = [1 4 7]
>
> Using these indices, I am trying to develop a matrix that looks like this
> a =[1 0 0;
> 2 3 4;
> 5 6 7]
>
> In other words, the indices variable (b) indicates end-points of the matrix a for each row. This looks simple but been trying to figure out how to generalize the code when b could be of different sizes. Any hints would be appreciated.
>
> Thanks,
> Naresh


I got confused ... what would A look like if B = [4 1 6 2] for instance?

~ Jos



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

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.