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From |
"Austin Nichols" <austinnichols@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: -mean- over id, save to a new dta, then variance matrix |

Date |
Thu, 18 Oct 2007 10:16:02 -0400 |

The first part is collapse v2-v17, by(v1) but I don't understand what you mean by "I would like to calculate the variance matrix for such new dta and saving it in one more new dta." On 10/18/07, nicola.baldini2@unibo.it <nicola.baldini2@unibo.it> wrote: > I have one dta of 17 columns and 354 rows. The first column, named id, contains the panel identifier (an integer from 1 to 63). I would like to produce a new dta file with 17 columns (keeping the original names) and 63 rows, containing the id variable, and the mean of the remaining 16 columns calculated by the id variable. > I know that I can have such means by -mean- and -tabstat-, but how can easily export the results in a new dataset? Next, I would like to calculate the variance matrix for such new dta and saving it in one more new dta. > How can I do? * * 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/

**References**:**st: -mean- over id, save to a new dta, then variance matrix***From:*nicola.baldini2@unibo.it

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