Array indices must be positive integers or logical values?

X=[1 2 3 4 5];for i=0:length(X) if mod(i,2)==0 f(i)=X(i); end end

[Chinni Sai Ram]

Showing Array indices must be positive integers or logical values. where I committed error? Please tell me.

Answer 1

[John D'Errico]

MATLAB does not allow an index of 0. The FIRST element of an array or vector is indexed as x(1).

In your loop, what was the range of the index i? You said

for i = 0:length(X)

So what does i start out as? (HINT: 0)

Now go back and read the first line I wrote.