So the line would look something like this. So this would have an r of negative one. And an r of zero, r is equal to zero, would be a data set where a line doesn't really fit very well at all. So I'll do that one really small, since I don't have much space here. So an r of zero might look something like this. Maybe I have a data point here, maybe I have a data point here, maybe I have a data point here, maybe I have a data point here, maybe I have one there, there, there, there, there. And it wouldn't necessarily be this well organized, but this gives you a sense of things.