"Naresh Pai" wrote in message <firstname.lastname@example.org>... > 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?