iteration on embedded matlab function

hi all, i'm trying to do iteration in embedded matlab function. The coding as below:

   function [P5,Q5,B5] = stats(Jacket5,E5,Mw5,Y5)
   %#eml

    %1st iteration
    %---------------------------------------
    t1 = NaN(10,1);
    u1 = NaN(10,1);
    w1 = NaN(3,1);
    q1 = NaN(2,1);
    p1 = NaN(3,1);
    b2_1 = NaN(1,1);

    nfactor = 1;
    for l=1:nfactor
    nn = 10;
   t1=Jacket5;
   t0=rand(nn,1);
   u1=(Mw5);
   k=1;
   kmax=100;

   while (k<kmax)
   k=k+1;
   t0 = t1;
   w1=E5'*u1/(u1'*u1);
   w1=w1/norm(w1);
   t1=E5*w1;
   q1=Y5'*t1/(t1'*t1);
   q1=q1/norm(q1);
   u1=Y5*q1/(q1'*q1);
   end
   p1=E5'*t1/(t1'*t1);
   %regression
   b2_1=u1'*t1/(t1'*t1);
   end

   %2nd iteration
   %----------------------------------------
   t2 = ones(10,1);
   u2 = ones(10,1);
   w2 = ones(3,1);
   q2 = ones(2,1);
   p2 = ones(3,1);
   b2_2 = ones(1,1);

   t2=t1;
   u2=u1;

   t0 = t2;
   w2=E5'*u2/(u2'*u2);
   w2=w2/norm(w2);
   t2=E5*w2;
   q2=Y5'*t2/(t2'*t2);
   q2=q2/norm(q2);
   u2=Y5*q2/(q2'*q2);

   p2=E5'*t2/(t2'*t2);
   %regression
   b2_2=u2'*t2/(t2'*t2);

   %3rd iteration
   %--------------------------------------------------
   t3 = NaN(10,1);
   u3 = NaN(10,1);
   w3 = NaN(3,1);
   q3 = NaN(2,1);
   p3 = NaN(3,1);
   b2_3 = NaN(1,1);
   nfactor = 1;
   for l=1:nfactor
   t3=t2;
   u3=u2;
   k=1;
   kmax=100;

   while (k<kmax)
   k=k+1;
   t0 = t3;
   w3=E5'*u3/(u3'*u3);
   w3=w3/norm(w3);
   t3=E5*w3;
   q3=Y5'*t3/(t3'*t3);
   q3=q3/norm(q3);
   u3=Y5*q3/(q3'*q3);
   end
   p3=E5'*t3/(t3'*t3);
   %regression
   b2_3=u3'*t3/(t3'*t3);
   end

   %store in matrices
   T5 = [t1 t2 t3];
   U5 = [u1 u2 u3];
   W5 = [w1 w2 w3];
   Q5 = [q1 q2 q3];
   P5 = [p1 p2 p3];
   B5 = [b2_1 b2_2 b2_3];

but the result of second and third iteration are same as the first iteration.Why?anyone have ideas why this happened?

[Image Analyst]

Do you know how to use the debugger? That should help you figure it out. Otherwise you'd have to supply values for Jacket5,E5,Mw5,Y5 in case anyone wants to use the debugger themselves to figure it out for you (though it would be faster if you just learned how to set breakpoints and use the debugger yourself).

[yana osman]

ok2..will try.so, my coding (coded in embedded matlab function) above can be used for iteration?instead using "for iterator" block?

[yana osman]

sir image analysis.your suggestion really work.Thank you.its really work

[V Vaishnavi Kumar]

Sir, i need to iterate an embedded matlab fcn in Simulink model for a particular no. of times. FOR and WHILE (command and iterator) are not appropriate, as the embedded block should get input and output at each iteration.

So i did this by using a digital clock input to the embedded block. thus a simple program is iterating (Simulation time / sample time of digital clock) no. of times properly...

the same logic with a lengthier program is not working, and its iterated unusually many no of times...

how this no of iterations can be controlled any idea