Subscripted assignment dimension mismatch

What is the problem with my code ?

When I run it, at first time it works normally and displayed the output as expected

but at the second time it displayed the following error

I tryed to re-open the MATLAB ..

but if I try the code twice it display the error , but if only once everything displayed as expected

Error in proj (line 147)

    p3(k2,:)=xcur';

CODE

%Initial condition

    xcur=(B*cur)+c;

    p3(k2,:)=xcur';

    fprintf(fid,'%3.6f\t%0.6f\t%0.6f\t',xcur);

    curnorm=xcur-cur;

    %Finding the norm

    max3=0;

    for i=1:4;

        if abs(curnorm(i,1))>max3;

            max3=abs(curnorm(i,1));

        end

    end

    p4(k2,1)= max3;                                 %For plotting

    fprintf(fid,'%3.6f\n',max3);

    if max3 >T;

        condition3=1;

    else

        condition3=0;

    end

    cur=xcur;

end

for i=1:4

    p3(i,4+1)=p4(i,1);

end

[Ben11]

In your last for-loop is it really

for i=1:4

      p3(i,4+1)=p4(i,1);
  end

that you want to write? The second index to p3 is actually 5 so maybe this causes the error?

[Fatima Al Marzoqi]

the code works fine if I run it once only . . if I want to run it another time , I should re-open the matlab

is this the solution?

Answer 1

[dpb]

    xcur=(B*cur)+c;
    p3(k2,:)=xcur';

xcur.' must be a column vector of the same length as that the first time on each subsequent pass. There's insufficient data presented to tell just what any dimensions are.

Use

dbstop on error

and see what the sizes of the terms are. That will, in all likelihood, reveal the logic error.

[Fatima Al Marzoqi]

the code works fine if I run it once only . . if I want to run it another time , I should re-open the matlab

is this the solution?

[dpb]

Is that what the Answer I gave says? No, I didn't think so... :(