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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

To |
<statalist@hsphsun2.harvard.edu> |

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

Date |
Wed, 7 Nov 2007 21:01:36 -0000 |

Now my best advice is to use -stripplot- from SSC. Its default is to show strips of data points, but you can jitter or stack and add boxes or bars. . sysuse auto (1978 Automobile Data) . stripplot trunk turn mpg, bar . stripplot trunk turn mpg, bar . stripplot trunk turn mpg, bar vertical You can use a -by()- option as well. I'd recommend showing the data, but you can blank it out with -ms(none)-. By default the bars are offset from the data which may answer your last question. Joseph Wagner 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? * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: RE: three mean and sd plots on the same graph?***From:*Joseph Wagner <joseph.wagner@wright.edu>

**References**:**st: three mean and sd plots on the same graph?***From:*Joseph Wagner <joseph.wagner@wright.edu>

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