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Why is the Blue label pointing to the red region and the Red label pointing to the blue region? Or are their lines actually pointing to the back of the chart wh
by FooBarWidget 17y ago
Why is the Blue label pointing to the red region and the Red label pointing to the blue region? Or are their lines actually pointing to the back of the chart where you can't see the line ends?
- RiderOfGiraffes 17y agoYou are being fooled, as pie charts often do. There are more blue pixels in the image than red. This is because of the thickness of the disk. Therefore in representing the proportion of blue pixels it's more than half the area of the circle. Therefore he has one slice which is more than half the area of the circle, and that half represents the blue pixels. He colors that red. And vice versa. The diagram is completely accurate, and very misleading. Adn deliberately so. It can be difficult to get pie charts to represent data accurately, and in a way that doesn't mislead the viewer. On the other hand, correct use of pie charts can be very effective. It's just that you don't often see it.
- wdewind 17y agoHave an example of correct use of pie charts?
- RiderOfGiraffes 17y agoI've just spent 20 minutes hunting, and the answer is "No, I have no examples of correct uses of pie charts."