plot - Stata Overlapping Histograms Different Color Where Overlap -

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is possible have different color in portions of overlap when have 2 histograms on same plot? have in mind can done in sas:

http://blogs.sas.com/iml/uploads/dualhist.png

in other words, 1 of histograms semi-transparent.

although there arguably many better ways compare distributions, shows small tricks: 

sysuse auto, clear  twoway histogram mpg if foreign, width(2) start(12) blcolor(red) bfcolor(none) fraction || histogram mpg if !foreign, width(2) start(10) barw(1.8) bfcolor(none) blcolor(blue) fraction ytitle(proportions) legend(order(1 "foreign" 2 "domestic") col(1) pos(1) ring(0))

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