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From |
"Martin Weiss" <martin.weiss1@gmx.de> |

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

Subject |
st: AW: RE: AW: AW: Adding the mean to a boxplot |

Date |
Fri, 7 May 2010 18:14:59 +0200 |

<> " Often it will even be ambiguous which mean goes with which group." Let`s make it less ambiguous, then: ************* sysuse bplong, clear su bp if sex, mean loc myfirstmean=r(mean) loc myfirstname "female" su bp if !sex, mean graph box bp, over(sex) /// yli(`r(mean)' `myfirstmean') /// yla(`myfirstmean' "`myfirstname'" /// `r(mean)' "male", angle(zero)) ************* HTH Martin -----Ursprüngliche Nachricht----- Von: owner-statalist@hsphsun2.harvard.edu [mailto:owner-statalist@hsphsun2.harvard.edu] Im Auftrag von Nick Cox Gesendet: Freitag, 7. Mai 2010 15:57 An: statalist@hsphsun2.harvard.edu Betreff: st: RE: AW: AW: Adding the mean to a boxplot In essence, this is a quick but dirty way to show means. You get one horizontal line for each group mean, which is usually less subtle graphically than people want. Often it will even be ambiguous which mean goes with which group. To do it better, you need very low-level programming or to use -graph twoway- to construct your box plot. Very full detail on the second way is given in SJ-9-3 gr0039 . . . . . . . . Speaking Stata: Creating and varying box plots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N. J. Cox Q3/09 SJ 9(3):478--496 (no commands) explains how to use egen to calculate the statistical ingredients needed for box plots and variations of box plots; shows the use of twoway to then create the plots This post earlier today expands on some related issues: <http://www.hsph.harvard.edu/cgi-bin/lwgate/STATALIST/archives/statalist.1005/date/article-332.html> Nick n.j.cox@durham.ac.uk Martin Weiss Here is your code: ************* sysuse bplong, clear su bp if sex, mean loc myfirstmean=r(mean) su bp if !sex, mean graph box bp, over(sex) /// yli(`r(mean)' `myfirstmean') yla(`r(mean)' `myfirstmean') ************* Martin Weiss Something tells me this is my code, not Nick`s. He might have cited it in his http://www.stata.com/statalist/archive/2009-06/msg00495.html post? Im Auftrag von drreg@earthlink.net I've read: st: RE: Re: Boxplot w/ 2nd y-axis and mean overlay >>>From "Nick Cox" <n.j.cox@durham.ac.uk> To <statalist@hsphsun2.harvard.edu> Subject st: RE: Re: Boxplot w/ 2nd y-axis and mean overlay Date Sun, 14 Jun 2009 18:16:01 +0100 <snip> <snip> "Additionally, I'd like to add the mean to the boxplot. Is there a way to do so?" *** sysuse bplong, clear su bp, mean graph box bp, over(sex) /// yli(`r(mean)') yla(`r(mean)') Suppose, instead, I wanted to place a marker (x, for example) representing the mean for males, and a marker representing the mean for females on the boxplot. How could this be accomplished? * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**st: RE: AW: RE: AW: AW: Adding the mean to a boxplot***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

**References**:**st: Adding the mean to a boxplot***From:*drreg@earthlink.net

**st: AW: Adding the mean to a boxplot***From:*"Martin Weiss" <martin.weiss1@gmx.de>

**st: AW: AW: Adding the mean to a boxplot***From:*"Martin Weiss" <martin.weiss1@gmx.de>

**st: RE: AW: AW: Adding the mean to a boxplot***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

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