Catia,
you could do an tab country, to see how many observations per country
you have. Maybe that in some groups missing values spoil your effort.
So you could do:
//you should replace v1,v2,.. with the variables you used with the xtreg command
egen nmiss=rowmiss(v1 v2 v3)
tab country if nmiss==0
will yield to you the number of observations per country where all
relevant variables (in this case v1 v2 v3) contain non-missing data.
Kind regards,
sebastian
On 9/15/05, catia nicodemo <[email protected]> wrote:
> Dear all,
> I use the command xtreg but I have a problem when I
> use the comand by country: xtreg,,,,,
> make an error: insufficient observation, but if do the
> sum of my var. I have observation.
> Can help me please.
> thanks in advance
>
> CATIA NICODEMO
>
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