sysuse auto

* We can reorder/reverse scales.

scatter price weight, yscale(reverse) xscale(reverse) xlabel(0(1000)5000)

* Categorical graphs can be reordered, too
graph dot price, over(rep78, descending)
graph dot price, over(rep78, sort(1))
graph dot price, over(rep78, sort((mean) weight))

* Notice yscale(reverse) causes a problem in categorical graphs
*    Here yscale(reverse) means over(var ,descending)
*    but Stata calls the categorical axis the x-axis!
graph dot price, over(rep78) yscale(reverse) title("reverse (buggy!)")
* Instead you want this
graph dot price, over(rep78) yreverse title("yreverse")