# st: RE: Percent distribution using the pweight

 From "Jann Ben" To Subject st: RE: Percent distribution using the pweight Date Wed, 24 Aug 2005 22:56:55 +0200

```Ying wrote:
> I want to create the percent distribution (both percent and
> frequency are
> needed).
...
> However, the tab command doesn't allow the pweight.

Use aweights. They provide the same results in this case as
would pweights, were they allowed. Using tabulate with aweights
is ok as long as you are only interested in the raw frequency
distribution. However, if you are interested interested in test
statistics or confidence intervalls or alike, you should think
about using, e.g., svytab (type -help svytab-).

On pweights, aweights and means, see
http://www.stata.com/support/faqs/stat/supweight.html

> BTW, is the fweight the inverse of the pweight?

No. fweights are frequency weights. They indicate how many
times a specific case (i.e. a specific combination of values)

ben

> -----Original Message-----
> From: owner-statalist@hsphsun2.harvard.edu
> [mailto:owner-statalist@hsphsun2.harvard.edu] On Behalf Of
> wying1@umbc.edu
> Sent: Wednesday, August 24, 2005 10:23 PM
> To: statalist@hsphsun2.harvard.edu
> Subject: st: Percent distribution using the pweight
>
>
> Dear list users,
>
> I want to create the percent distribution (both percent and
> frequency are
> needed).  I need sth. like:
>
>
> . tab hhldpov1
>     Poverty |
>   status on |
>     monthly |
>  threshold: |
>           1 |
> (<100%),2{1 |
> 00%,200%),3 |
>     {200%)' |      Freq.     Percent        Cum.
> ------------+-----------------------------------
>           1 |     14,062       13.57       13.57
>           2 |     20,343       19.63       33.20
>           3 |     69,210       66.80      100.00
> ------------+-----------------------------------
>       Total |    103,615      100.00
> --------------------------------------------------------------
> ----------
>
> However, the tab command doesn't allow the pweight.
>
> So I did.
>
> ---------------------------------------------------------------------
>
> . table hhldpov1 [pweight =whfnwgt], format(%12.0g)
>
> ------------------------
> Poverty   |
> status on |
> monthly   |
> threshold |
> : 1       |
> (<100%),2 |
> {100%,200 |
> %),3{200% |
> )'        |        Freq.
> ----------+-------------
>         1 |  5.81216e+11
>         2 |  8.55400e+11
>         3 |  3.01133e+12
> ------------------------
> --------------------------------------------------------------
> -----------
>
> This only shows the frequency but not the percent.  I know I
> can simply
> calculate the percent distribution by excel, but it would be
> nice to have
> it directly from the Stata output.  Can somebody help me with this?
>
> BTW, is the fweight the inverse of the pweight?
>
>
>
> Many thanks,
> Ying
>
> *
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>

*
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```