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From |
Antoine Terracol <Antoine.Terracol@univ-paris1.fr> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Re: Scatterplot of mean values |

Date |
Wed, 31 Mar 2010 14:16:15 +0200 |

you could generate the means and then plot them sysuse auto, clear bysort rep78 : egen m_mpg=mean(mpg) bysort rep78 : egen m_weight=mean(weight) twoway scatter m_mpg m_weight

bysort rep78 : gen ok=(_n==1) and then twoway scatter m_mpg m_weight if ok Antoine On 31/03/2010 13:55, Fernando Terrés wrote:

Martin, perhaps I didn't explain it correctly Let us say that, in the auto.dta dataset, I want to plot the mean values of mileage against the mean values of weight, both means grouped by repair record. I could do: ************* sysuse auto, clear collapse mpg weight, by(rep78) twoway (scatter mpg weight) ************* My problem is that I need to do the same task for several categorical variables of a large file, and every collapse forces me to upload the dataset again. Thanks again, Fernando

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**Follow-Ups**:**RE: st: Re: Scatterplot of mean values***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

**References**:**st: Re: Scatterplot of mean values***From:*Fernando Terrés <fernando.terres@upc.edu>

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