How to add ttest for difference of means in my regression table?

[Titir Bhattacharya]

Hi statalist,

I'm looking at heterogeneity of ITT by some observable characteristics.
The sample code is as follows:

eststo: areg y treat##post if x1==1, absorb(x2) cluster(cluster)
estadd local fe "Yes"
estadd local control "Yes"
estadd ysumm

eststo: areg y treat##post if x1==0, absorb(x2) cluster(cluster)
estadd local fe "Yes"
estadd local control "Yes"
estadd ysumm

esttab est1 est2 using "....\table.tex", s(ymean N fe control, label("Y_mean" "N" "Fixed Effects" "Control variables"))se ar2 starlevels(* 0.10 ** 0.05 *** 0.01)                        ///
        title(Table)

I also want to present the ttest for difference of means to see if the difference in DiD coefficients between the two groups is statistically significant.

While I can manually add the ttest results, i have a lot of variables and many dimensions and it would become tedious.

Is there any way to insert the ttest results by amending the existing code?

Thanks in advance!

[Rich Goldstein]

a t-test is a regression where the only predictor is the group - so just use -regress- if -ttest- is a problem for the program you are using (I am not familiar with that set of programs)