i need help in this matlab code

I want to calculate this function

X(i,j)=teta(1,0)*x(i-1,j)+teta(0,1)*x(i,j-1),and teta are parametre unknown this is my code

p1=1;

p2=1;

teta=size(x);

for i=p1+1:m

for j=p2+1:n

X(i,j)= teta(1,0)*x(i-1,j)+teta(0,1)*x(i,j-1);

end

end

I have this message:

Subscript indices must either be real positive integers or logicals.

Error in Untitled2 (line 68)

X(i,j)= teta(1,0)*x(i-1,j)+teta(0,1)*x(i,j-1);

Answer 1

[John D'Errico]

READ THE ERROR MESSAGE. Then look at your code. teta is a variable, correct? What is this?

teta(1,0)

How about this?

teta(0,1)

So if teta is a variable, then teta(1,0) is an index operation into that variable. Now, go back and read the error message again.

MATLAB does not support a zero based index origin. The FIRST element in an array is at index 1.