I am getting an error Index exceeds the number of array elements in the following code. Kindly help me out with this problem.

for i=2:n1

V(i)=(2*((v(i))^2)*(v(i+1))^2)-((2*(v(i+1))^2)*((p(i+1)*r(i))+(q(i+1)*x(i))))-(abs(zb)^2)*((p(i+1)^2)+(q(i+1)^2));

Vbase=V(i);

end

for i=2:n1

V(i)=(2*((v(i))^2)*(v(i+1))^2)-((2*(v(i+1))^2)*((P1(i+1)*r(i))+(q(i+1)*x(i))))-(abs(r(i)+x(i))^2)*((P1(i+1)^2)+(q(i+1)^2));

Vload=V(i);

end

Answer 1

[Cris LaPierre]

We don't have enough information to tell you which variable is causing the problem. However, one of your variables has less than i values, so when you try to index into it using i, your index exceeds the size of the variable, resulting in the error message you are seeing.

% consider a variable with 2 values
a=[1 2];
% Try to index the 3rd value
a(3)

Index exceeds the number of array elements (2).