Fisher test of the null hypothesis

[WandaWau]

Hi everyone,

I'm working on my thesis "meta-regression-analysis of Cipollinas "Trade impacts of EU preferential policies"" but do not understand the descriptions how to do the Fisher test.
It is given like this:

We perform the Fisher test of the null hypothesis of no effect of PTAs on trade.

gen pgamma=ttail(obs,tratio)
replace pgamma=1.e-20 if pgamma==0.
label var pgamma "P-value for gamma"
metap pgamma if dummy_policy==1, method(f)
metap pgamma if dummy_policy==0, method(f)

Are these commands of a former eviews version and where could I find a current "translation" of it? Or does anyone know how to fix it in a different way?
The only thing I could find was "coint(Fisher, s) obs tratio", but like this I can not give a name to the test to change it.

I would be really thankful if you know any help!!

[EViews Gareth]

Those are not EViews commands.

Which Fisher test do you wish to implement?

[WandaWau]

Hello Gareth,

thank you a lot for your quick response.

I wanted to do the Fisher's exact test to test the statistical significance. Now I don't understand out of the quick help reference, if one of the "ADF", "Fisher-Johansen" or "PP" is my exact test or where else I could find it.

[EViews Gareth]

Test the statistical significance of what?