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: i want to simplify this code
Replies: 14   Last Post: Apr 22, 2013 7:11 AM

Advanced Search

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

Posts: 8,289
Registered: 6/7/07
Re: i want to simplify this code
Posted: Apr 7, 2013 5:26 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

On 4/7/2013 3:55 PM, mohammed wrote:

...[top posting repaired--don't: hard follow conversation makes]...

> dpb <none@non.net> wrote in message <kjq2hi$fst$1@speranza.aioe.org>...
>> On 4/6/2013 2:59 PM, mohammed wrote:
>> > no help :( ?
>>
>> What have you tried???
>>
>> V=[100 200 255 150 50];
>> for i=1:5
>> n=power(2,i);
>> [ix,iy]=find(S==n);
>> for j=ix
>> I(ix(j):ix(j)+(n-1),iy(j):iy(j)+(n-1))=V(j);
>> end
>> end
>>
>> conv2() comes to mind but not sure there's any better way overall w/o
>> thinking about it more than have time for at the moment...


> it show me this error Index exceeds matrix dimensions.
>
> Error in ==> quadtree at 29
> I(ix(j):ix(j)+(n-1),iy(j):iy(j)+(n-1))=V(j);


Yeah, change to run the loop over 1:length(ix) instead of using ix
directly since you have to use both ix and iy.

--




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.