can any one help me i wanna to correct this code ?

#

pih=[];
n=[]; % matrice contenant le nbr de tag n

i=[]; % matrice   contenant le nbr des descendants 
a=[];
b=[];
w=[];
 tt=[];

s=19;  %  parametre du boucle  max desz nbr  n

p=5;   %  para  max des nbr i
k=8;  %  taille de l'identifiant
m=2;  % modulo
h=3 ; %  niveau  de l'arbre 
for im=1:s
n=1:1:s;
end
g=prod(n);  %  le calcul du factoriel  n
for is=1:p
    i=1:1:p;
end
o=prod(i);  %  le calcul du factoriel  i
x=g-o;  %  le calcul du  factoriel  n-i
f=g/(o*x);   %  le calcul du combinaison   i parmi n  
a= [a;2^(k-m*h)];   %  maatrice contenant  la  valeur   2^(k-m*h)   

    gg=prod(a) / (o*prod(a)-o);   %   combinaison de  i  parmi a  

b=[b;2^k];  %  matrice contenant 2^k
cc= prod(b) / o * (b-o);  % combinaison de i parmi b
nn=gg/cc;     %  la deuxiéme partie de l eq de pih
w=[w;((2^k)-(2^(k-(m*h))))];  %  matrice contenant  ((2^k)-(2^(k-(m*h))))
ww= prod(w)/ o* prod(w)-o; %  combinaison de i parmi ww

ss=b-i;
rr=prod(b-i);
zz=rr/((g-o)*rr)-(g-o); %  combinaison de (n-i)  parmi ww
pih=[pih;f*zz*nn]; %  valeur final de pih

   kk=96;
   bcmd=5;
   bnvb=8;

   v=[];

     for m=1:5 
   if(m>=2)

           v=[v;bcmd+bnvb+kk-m+2.^m]

           elseif(m==1)
        v=[v;bcmd+bnvb+kk]
   end
     end

pnd=[];
for ii=1:0.1:1

       pnd=[pnd;1-sum(pih(ii))];
  end

encyy=[];
for j=1:0.1:63
   for h=1:0.1:3

        n=2:2:16;
        % if(n>=2)
        encyy =[encyy;sum((sum( pnd(j))) ,h)+n];

     end  

   alpha=40;

    tt=[tt;((encyy*v)/alpha)] ;
  end
   nn=1:0.1:2;
      plot(nn,tt,'r');

#

the error msg is :

plot(nn,tt,'r');
??? Error using ==> plot
Vectors must be the same lengths.

Answer 1

[James Tursa]

Learn to debug. Type this at the command line:

dbstop if error

Then run your code. It will pause at the error and you will be able to examine the variables involved. Type this:

size(nn)
size(tt)

They will be different sizes. So look upstream in your code to figure out why they are different.

Answer 2

[Image Analyst]

Try this:

nn = linspace(1,2, length(tt));
plot(nn, tt, 'r*-');

[safi marwa]

plot(nn, tt, 'r*-'); ??? Error using ==> plot Vectors must be the same lengths. :(

[Image Analyst]

That can't be. Look at my linspace function. I told it to make nn exactly the same number of elements as tt. What does this say

whos nn
whos tt

By the way, give us code that produces the error that you have. When we copy and paste it, it gives some totally different error.