How can one create a double horizontal axis for a plot in ggplot2?
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by Alex Holcombe
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Published on 2010-03-26T08:38:55Z
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2010/03/26
8:43 UTC
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ggplot2
I need to show the values on the horizontal axis (aka ordinate, aka x-axis) converted into other units. Hence the need for a second axis.
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