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Re: st: Group-mean equality test
From
lreine ycenna <[email protected]>
To
[email protected]
Subject
Re: st: Group-mean equality test
Date
Wed, 10 Aug 2011 16:21:01 +0100
by the way, I'm meant to test the signficance for the changes in means
from period 1 and period2, period2 and period 3..etc.
I'm using stata11.
Thanks in advance.
On 10 August 2011 16:14, lreine ycenna <[email protected]> wrote:
> Hi All,
> I am looking for an easier way to calculate the mean values for each
> of my variables for different time horizons (e.g. variable x from
> 1985-1990, 1991-1996..etc) and at the same time test the signficance
> (t-stats) for the changes between the means for these periods within
> each variable itself. I manage to go from egen meanedu= mean(edu) if
> year < 1991 & year > 1979 & country==GBR. and the same for the next 5
> year period..etc. Though this only gives me the mean values for the
> time periods wanted, how do I then test the significance for the
> changes using ttest?
>
>
> year code edu
> 1973 GBR 0.6096253
> 1974 GBR 0.5443353
> 1975 GBR 0.5181908
> 1976 GBR 0.3762168
> 1977 GBR 0.5183734
> 1978 GBR 0.3920778
> 1979 GBR 0.4526944
> 1980 GBR 0.4694474
> 1981 GBR 0.3979259
> 1982 GBR 0.3916153
> 1983 GBR 0.2517771
> 1984 GBR 0.2545344
> 1985 GBR 0.2207009
> 1986 GBR 0.1595718
> 1987 GBR 0.30558
> 1988 GBR 0.2499627
> 1989 GBR 0.4576487
> 1990 GBR 0.5781643
> 1991 GBR 0.5855764
> 1992 GBR 0.4679879
> 1993 GBR 0.3789743
> 1994 GBR 0.6381156
> 1995 GBR 0.6055152
> 1996 GBR 0.4644643
> 1997 GBR 0.195214
> 1998 GBR 0.2751569
> 1999 GBR 0.4539562
> 2000 GBR 0.46502
> *
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>
*
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