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From |
Stas Kolenikov <skolenik@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: how to let loop continue when no observation svy:mean: --capture--gives errors |

Date |
Fri, 17 Jun 2011 19:46:13 -0400 |

Looks like this is the case for -collapse (mean) v* [pw=survey weight], by(a b)-, although generally I dash aside from -collapse- as it destroys my data. The code you gave won't work for the -matrix- command that needs to use square brackets. Finally, collecting results in a matrix is rarely a very good idea... or at least you would want to provide nice row and column labels to make it readable. On Fri, Jun 17, 2011 at 6:45 PM, Amanda Fu <mandy.fu1@gmail.com> wrote: > Hi all, > > I am trying to collect the results for the weighted mean of a set of varaibles. > ------------------ > ****using matrix stats to collect the results > matrix stats=J(150,10,-99) > forvalue i=1/10 { > local k=0 > forvalue j=5/20 { > local ++k > svy:mean v`i'_`j' if a==`i' & b==`j' > matrix stats(`i',`k')=r(mean) > } > } > ------------------- > > The above codes stop somewhere since "there is no observation" for > some of the conditions. > In order to make the loop keep going, I add capture before "svy:mean > v`i'_`j' if a==`i' & b==`j'" > But in the resulted matrix, the places that should be shown as "." are > filled with the previous nonmissing values. That causes confusion. > Therefore, I wonder how I can let the loop continue even when there > are cases that there is no observations ? > > Thank you! > > Best wishes, > Amanda > * > * 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/ > -- Stas Kolenikov, also found at http://stas.kolenikov.name Small print: I use this email account for mailing lists only. * * 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**:**Re: st: how to let loop continue when no observation svy:mean: --capture--gives errors***From:*Amanda Fu <mandy.fu1@gmail.com>

**References**:**st: how to let loop continue when no observation svy:mean: --capture--gives errors***From:*Amanda Fu <mandy.fu1@gmail.com>

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