integer operands are required for colon operator when used as index

Why do I get the warning "integer operands are required for colon operator when used as index" in the final line is this code:

vector_examined = rand(items,1); criteria = vector_examined < value; passes = find(criteria);

[the cyclist]

Would it be possible for you to post some self-contained code that will produce the error (without us having to guess what "items" and "value" look like)? For example, if I choose items=5 and value=0.2, your code runs just fine for me.

[Walter Roberson]

I do not see anything obvious. Is it possible that you typed this line in for us, rather than using copy-and-paste? Could you also show us the previous line?