The problem is the standard deviation. -table- calls -collapse- which
does not allow sd with pweighted data (see -help collapse- or [D]
collapse).
. sysuse auto,clear
(1978 Automobile Data)
. table foreign [pw=weight], c(mean price n price )
------------------------------------
Car type | mean(price) N(price)
----------+-------------------------
Domestic | 6,500.6 172,490
Foreign | 6,799.1 50,950
------------------------------------
. table foreign [pw=weight], c(mean price n price sd mpg)
variable __000004 not found
r(111);
Unfortunately, -table- does pass along the error message from -
collapse-. If you -set trace on- you would see:
...
--------- begin collapse._sd ---
- args y x wt w by
- if (`"`w'"'=="") local w 1
= if (`"__000004"'=="") local w 1
- else {
- if `"`wt'"'=="pweight" {
= if `"pweight"'=="pweight" {
- di as err "sd not allowed with pweights"
- exit 135
}
}
...
Scott
----- Original Message -----
From: Michael Hout <[email protected]>
Date: Monday, April 3, 2006 11:34 pm
Subject: st: table error
To: [email protected]
> Dear Statalisters:
>
> Running table with pweight gives a mysterious error message:
>
> .table foreign [pw=weight], c(mean price sd price n price)
> variable __000003 not found
> r(111);
>
> -Mike Hout
> Sociology, Berkeley
> PS
> .table foreign [pw=weight], c(mean price sd price n price)
> runs fine.
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