st: Panel data output

[Cordula Stolberg <cs32@sussex.ac.uk>]

Dear all,

I had to have STATA reinstalled (& the Stata updates from the website) on 
my computer today and now I'm having trouble to run the regressions that 
worked fine yesterday. I'm trying to run a LSDV with industry dummies and 
interaction terms. The output I get is the following:


xi: reg dy dx dxlimp_eu dxlimp_ceecs dxlimp_chn limp_eu limp_ceecs limp_chn

> i.dapp*dx i.ap_cz*dx i.ap_slvk*dx i.dag*dx i.dneg*dx i.neg_slvk*dx 
i.dgo*dx i.industry if tin(1994,2001)
i.dapp            _Idapp_0-1          (naturally coded; _Idapp_0 omitted)
i.dapp*dx         _IdapXdx_#          (coded as above)
i.ap_cz           _Iap_cz_0-1         (naturally coded; _Iap_cz_0 omitted)
i.ap_cz*dx        _Iap_Xdx_#          (coded as above)
i.ap_slvk         _Iap_slvk_0-1       (naturally coded; _Iap_slvk_0 omitted)
i.ap_slvk*dx      _Iap_Xdxa#          (coded as above)
i.dag             _Idag_0-1           (naturally coded; _Idag_0 omitted)
i.dag*dx          _IdagXdx_#          (coded as above)
i.dneg            _Idneg_0-1          (naturally coded; _Idneg_0 omitted)
i.dneg*dx         _IdneXdx_#          (coded as above)
i.neg_slvk        _Ineg_slvk_0-1      (naturally coded; _Ineg_slvk_0 
omitted)
i.neg_slvk*dx     _InegXdx_#          (coded as above)
i.dgo             _Idgo_0-1           (naturally coded; _Idgo_0 omitted)
i.dgo*dx          _IdgoXdx_#          (coded as above)
i.industry        _Iindustry_15-36    (naturally coded; _Iindustry_15 
omitted)
invalid syntax
r(198);

I then tried to run the regression as a fixed effects regression then but 
that wouldn't work either. As I said, I ran both regressions yesterday 
(even twice) and they worked fine. Moreover, I even re-created the dataset 
and that doesn't help either. Does anyone know what I'm doing wrong here?

Moreover, do the tests "xttest2" and xttest3" only work with "xtreg, fe" 
regression or also with a LSDV regression?

Thanks for your help,
Cordula 
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