How to do a "for-loop"?

I have this code. My concern is in the "l" loop

for k=1:width(tt)
    for l=34736:34736
        recnum(l) = l;
        signum(k) = k;
        y{l,k} = tt.(signum(k)){recnum(l)};
    end
end

then I want to change the loop "l" (until 35336)

l = 34737:34737

for k=1:width(tt)
    for l=34737:34737
        recnum(l) = l;
        signum(k) = k;
        y{l,k} = tt.(signum(k)){recnum(l)};
    end
end

then

for k=1:width(tt)
    for l=34738:34738
        recnum(l) = l;
        signum(k) = k;
        y{l,k} = tt.(signum(k)){recnum(l)};
    end
end

........

Finally:

for k=1:width(tt)
    for l=35336:35336
        recnum(l) = l;
        signum(k) = k;
        y{l,k} = tt.(signum(k)){recnum(l)};
    end
end

As you can see, the loop "l" is changing from 34736 until 35336. Where should I put the loop properly so that I do not need to write "for-loop" until 600 times (from 34736 to 35336)?

Answer 1

[Prannoy]

You can instead insert a for loop like this :

for k=1:width(tt)
    for x=34736:35336
        for l = x:x
            recnum(l) = l;
            signum(k) = k;
            y{l,k} = tt.(signum(k)){recnum(l)};
        end
    end
end

Unrecognized function or variable 'tt'.

This should solve your problem.

Answer 2

[VBBV]

Hi Matrix,

What you need in this case is not for loop but a while loop which can avoid writing a loop 600 times and hence much better in terms of program execution time

for k=1:width(tt)
    % define the starting point
    L = 34736;    
    while L <= 35336
        recnum(L) = L;
        signum(k) = k;
        y{L,k} = tt.(signum(k)){recnum(L)};
        % use the increment till the count 35336 
        L = L + 1;
    end
end