Take a look at -help tsset- and -help xt-. You must have had the panel
variable declared at some point yesterday.
The solution is to either follow the error message and add the i() (-xtreg
var1 var2, i(panelvar)-) or you -tsset- your data.
I do not understand your comments about the dialogue boxes, but if they did
not work you should take that up with tech support.
Scott
> -----Original Message-----
> From: [email protected] [mailto:owner-
> [email protected]] On Behalf Of Morten Hesse
> Sent: Friday, August 25, 2006 2:30 AM
> To: [email protected]
> Subject: st: Identifier dissapears?
>
> Hi,
> I'm a new STATA user, so please apologize if this is a stupid question. I
> am
> analyzing panel data and yesterday (when I first tried), it worked fine,
> and
> I could use all the models. When I tried to run the model again it
> remembered my choice of identifier and time variable.
> Today, no matter what model I use, the identifier dissapears. That is,
> when
> I run the model, I get and error message called "i() required". I have
> tried
> to use the function "declare data set to be time-series data" and to press
> the panel settings button on the xtlogit dialogue box and the xtreg
> dialogue
> box.
> Has anybody got a solution?
> Greetings,
> Morten
>
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