Rotate the labels on the x axis to be rotated so that they are vertical,
which is often useful when there are many overlapping labels along the x
axis.
Usage
rotateTextX()
Arguments
Value
A ggplot2 layer that can be added to an existing ggplot2 object.
Details
This function is quite simple, but it can be useful if you don't have
the exact syntax to do this engraved in your head.