[Red in Blue PA]

That chart doesn’t make sense. There is a line for the green and for the yellow, but not for the red.

[sam_paine]

That chart doesn’t make sense. There is a line for the green and for the yellow, but not for the red.

This is called a "stacked chart."

It is good for showing data which adds up to 100%.

The data is not represented by the lines, but by the colors.

You can see the Red disapproval grow, and the green approval and yellow undecided shrink.

Think of it as looking at a pie chart over time.

[OKSooner]

So it’s not just me? Looks to me like that chart starts at 68% approve and 88% disapprove. Maybe I’m hung over from having dos cervezas with dinner last nite, but I’m having trouble making sense of it.