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Topic: For Loop Problem
Replies: 2   Last Post: Feb 13, 2013 9:22 AM

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 Steven Lord Posts: 18,038 Registered: 12/7/04
Re: For Loop Problem
Posted: Feb 13, 2013 9:22 AM

"Pete " <harri.short@hotmail.com> wrote in message
news:kfg5d3\$6k6\$1@newscl01ah.mathworks.com...
> Hi,
> I am trying to use a For Loop to assign each individual number in a 31x1
> matrix a letter. I have tried to create a For loop but i keep getting an
> error saying that it cannot label the point as there are not enough points
> in the matrix, i.e there are 31 numbers in the matrix and it is trying to
> find the 32nd. What am i doing wrong? Here is what i have at the moment:
>
> for j=1:length(Tr)
> A=Tr(j);
> B=Tr(j+1);

When j is equal to length(Tr), Tr(j+1) is one past the end of the array. How
to fix this depends on what exactly you're trying to do. There are likely
ways to do what you described without a loop, depending on the specific
details behind your individual numbers. Are they integer values? Are they
unique? What criteria are you using to generate the number -> letter
mapping? If you post more information to the newsgroup, people may be able
to offer more specific suggestions.

--
Steve Lord
slord@mathworks.com