st: three mean and sd plots on the same graph?

[Joseph Wagner <joseph.wagner@wright.edu>]

I created box plot graph with of 3 X variables over the same Y variable 
but was then asked to produce a similar graph this time using mean (not 
median) and +/- 95% CI.   I don't think Stata can do this but thanks to 
a post by Nick three years ago, I was able to (sort of) create these:

egen mean = mean(cont), by(cat) 
egen sd = sd(cont), by(cat) 
gen upper = mean + sd
gen lower = mean - sd 
scatter mean cat || rcap upper lower cat 
. . .  is the example Nick gave but how would (or could I?) do this for three different X variables (in Nick's example I suppose it would be 3 different 'cont' variables) on the same graph?  I can do 
this for two but not 3 which brings me to my next problem: 
The box plots I created earlier were each side by side for the same value of X (rather than on top of one another) but the two -rcap- graphs are on top of each other making it impossible to differentiate 
the two lines (three would be even worse).  Is there a way to separate these lines or do I need to graph these data in another way altogether?  
Thanks for your help.



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