What about geom_point where the point value up the y axis is population, but the size of the point is drawn from the 'something else' p + geom_point(aes(size = something else))
@DanS started
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What about geom_point where the point value up the y axis is population, but the size of the point is drawn from the 'something else' p + geom_point(aes(size = something else))