[Date Prev][Date Next][Thread Prev][Thread Next][Date index][Thread index]

From |
Richard Williams <Richard.A.Williams.5@nd.edu> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: non-integer frequencies? |

Date |
Wed, 10 Mar 2004 23:29:46 -0500 |

At 09:49 PM 3/10/2004 -0600, ACHINTYA RAY wrote:

I think iweights will work, at least if the command allows the use of iweights. e.g. I just triedSample surveys oftentimes provide weights to convert sample estimates into representative population figures. Sometimes such frequency weights are not integers (For example, National Health and Nutrition Examination Survey III). It seems that Stata can only deal with integer frequency weights. Is there a solution? The best that I can do right now is to take the nearest integer to the non-integer frequencies. This method seems rather adhoc. Any help will be deeply appreciated.

. sum income

Variable | Obs Mean Std. Dev. Min Max

-------------+--------------------------------------------------------

income | 500 27.79 8.973491 5 48.3

. sum income [fw=1.2]

may not use noninteger frequency weights

r(401);

. sum income [iw=1.2]

Variable | Obs Weight Mean Std. Dev. Min Max

-------------+-----------------------------------------------------------------

income | 500 600 27.79 8.971993 5 48.3

However, remember that, for purposes of statistical inference, the numbers you get are wrong.

-------------------------------------------

Richard Williams, Notre Dame Dept of Sociology

OFFICE: (574)631-6668, (574)631-6463

FAX: (574)288-4373

HOME: (574)289-5227

EMAIL: Richard.A.Williams.5@ND.Edu

WWW (personal): http://www.nd.edu/~rwilliam

WWW (department): http://www.nd.edu/~soc

*

* 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**:**RE: st: Problems with downloading the collinearity program from***From:*"Nick Cox" <n.j.cox@durham.ac.uk>

**RE: st: Problems with downloading the collinearity program from***From:*"Clive Nicholas" <Clive.Nicholas@newcastle.ac.uk>

**st: non-integer frequencies?***From:*"ACHINTYA RAY" <achintyar@hotmail.com>

- Prev by Date:
**st: non-integer frequencies?** - Next by Date:
**st: chitesti -- latest version -- findit** - Previous by thread:
**st: non-integer frequencies?** - Next by thread:
**RE: st: Problems with downloading the collinearity program from** - Index(es):

© Copyright 1996–2014 StataCorp LP | Terms of use | Privacy | Contact us | What's new | Site index |