As Martin notes, using -stats- (as opposed to -statistics- or an
abbreviation thereof) as an argument to the -columns()- option is an
undocumented feature of -tabstat-. The feature is not supported by
-estpost tabstat- because -columns()- has no effect on how -tabstat-
returns its results and, hence, -estpost tabstat- has to interpret
-columns()- and take steps to rearrange results accordingly. When
implementing this I was not aware of the undocumented -stats-
argument. I'll try to put together an update which adds support for
-columns(stats)-.
ben
On Mon, Apr 6, 2009 at 2:12 PM, Martin Weiss <[email protected]> wrote:
>
> <>
>
> I think "stats" should not be an abbreviation for "statistics" in official
> -tabstat-. At least the documentation for the -columns()- option could make
> the issue clearer. -tabstat.ado- checks for the "columns" local btw lines 41
> and 57, and allows "stats" in line 50 as a specification of "statistics" in
> an "else if" once it is past the usual -substr()- check for abbreviations of
> "variables" or "statistics".
> The help file for -tabstat- only mentions that "(stats() is a synonym for
> statistics().)" under "statistics", but not under "columns"...
>
> How -estpost- handles the issue is harder to find out. It gets passed thru
> to a quiet call to official -tabstat- but I am having a hard time trying to
> see what it does next to format its own output- which probably need not
> match the one delivered by -tabstat-
>
>
> HTH
> Martin
>
> -----Ursprüngliche Nachricht-----
> Von: [email protected]
> [mailto:[email protected]] Im Auftrag von Richard Ochmann
> Gesendet: Montag, 6. April 2009 12:43
> An: [email protected]
> Betreff: st: estpost tabstat
>
> ...
>
> I stumbled over this issue:
>
> ***
> sysuse auto
> ***
>
> While
>
> ***
> estpost tabstat price mpg, col(stat)
> ***
>
> returns as expected:
>
> Summary statistics: mean
> for variables: price mpg
>
> | e(mean)
> -------------+-----------
> price | 6165.257
> mpg | 21.2973
>
> ***
> estpost tabstat price mpg, col(stats)
> ***
>
> returns:
>
> Summary statistics: mean
> for variables: price mpg
>
> | e(price) e(mpg)
> -------------+----------------------
> mean | 6165.257 21.2973
>
>
> Given that both
>
> ***
> tabstat price mpg, col(stat)
> tabstat price mpg, col(stats)
> ***
>
> do the desired:
>
> variable | mean
> -------------+----------
> price | 6165.257
> mpg | 21.2973
> ------------------------
>
> I am surprised finding the above.
>
>
> best, rich
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