Hi,
You can use capture command to be able to extract the results that
are possible to compute. An the recompute your ttest for valid varlists
like this
local i = 1
while `i' <= 3 {
cap ttest var`i', by(group)
if _rc==0 {
ttest var`i', by(group)
}
local i = `i' + 1
}
You get results for Var1 and Var2
Regards
Anthony
----- Original Message -----
From: "Yong-Seok Choi" <[email protected]>
To: <[email protected]>
Sent: Thursday, October 16, 2003 5:11 AM
Subject: st: no stop option
> Dear statalisters,
>
> Here is my problem for which I need your help. (I'm using STATA8.0)
> Simplified form of the data look like...
>
> id group var1 var2 var3 var4 .........
> 1 a 1 . 3
> 2 a 3 . 2
> 3 b 1 2 4
> 4 b 2 1 5
>
> I would like to do the mean-difference test for each variables by group.
> So I make the do file containing
>
> local i = 1
> while `i' <= 3 {
> ttest var`i', by(group)
> local i = `i' + 1
> }
>
> Then, ttest for var1 is ok, but with var2 STATA makes error "r(420) 1group
found, 2 required" (because of data missing) and stops without ttesting for
var3.
> Is there any way that I can get the result of ttest for var1 and var3
without being stopped at var2?
>
> PS. I need to have the ttest results for var1 and var3, so I cannot use
"capture" command.
>
> Many thanks in advance.
>
> *
> * 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/
*
* 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/
