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

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Posts: 1,268
Registered: 10/24/08
Re: index end-point to matrix
Posted: Jan 31, 2013 5:20 AM
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"Naresh Pai" wrote in message <kec3s0$gl9$>...
> 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

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