[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

From |
sjsamuels@gmail.com |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: error using survwgt |

Date |
Wed, 8 Jul 2009 18:04:03 -0400 |

The error message means exactly what it says and has nothing to do with missing values. Here's an example with two control variables (gender, agegp) and control total variables. gender gender_tot 1 (male) 1,822 2 (female) 3000 agegp agegp_tot 1 (<=20) 1000 2 (21-40) 2000 3 (41+) 1644 If you then run survwgt rake old_wt, /// by(gender agegp) totvars(gender_tot agegp_tot) /// gen(new_wt) you will get exactly the error message that you quote, because the population total summing over genders is 4822, but summing over age groups is 4644. This usually happens if control totals come from different sources. Whatever the cause, you will have to adjust the totals so that they sum exactly to the same value for each control variable ("dimension"). For example, you could multiply the gender_tot values by 4644/4822, round to the nearest 1, then add or subtract to make the gender totals sum exactly to 4644. If you DID have missing values for gender or agegp, you would have to create new control variables, say xgender xagegp, and the corresponding tot variables, then impute values where the original variables are missing. In other words. someone with missing age would get assigned an xagegp value of 1, 2, or 3. -Steve On Wed, Jul 8, 2009 at 5:30 PM, Kate Kelsey<kkelsey@berkeley.edu> wrote: > I am using STATA 9. > Here is my code: > > . survwgt rake perwt, by(child sex ) totvar(tot_child tot_sex) > generate(weight3) maxrep(1000) > > and here is the error I get: > > totals across dimensions 1 and 2 are not equal > > Why would I be getting this error? -- Steven Samuels sjsamuels@gmail.com 18 Cantine's Island Saugerties NY 12477 USA 845-246-0774 * * 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: error using survwgt***From:*"Kate Kelsey" <kkelsey@berkeley.edu>

**References**:**st: error using survwgt***From:*"Kate Kelsey" <kkelsey@berkeley.edu>

- Prev by Date:
**st: RE: error using survwgt** - Next by Date:
**Re: st: re: Could Stata give the variance of the parameter estimates?** - Previous by thread:
**st: RE: error using survwgt** - Next by thread:
**Re: st: error using survwgt** - Index(es):

© Copyright 1996–2015 StataCorp LP | Terms of use | Privacy | Contact us | What's new | Site index |