It is not implemented.

You have to compute the Chow test:

https://stats.stackexchange.com/questions/369602/how-to-apply-chow-test-for-panel-data-analysis

Here, W. Gould tells you how to do it:

https://www.stata.com/support/faqs/statistics/computing-chow-statistic/

thanks José-Ignacio Antón

Dear Gabriel

I will say you consider Chow test too.

With time, more test will be applicable for Covid-19.

Regards

Hello Gabriel. For panel data, you will need to run a loop.

Inside the loop, you can run the structural break test individually for each case in your panel. For example, if your case IDs are stored 1 to 10, then you could write:

foreach i in numlist 1/10 {

quietly regress a b if ID = `i'

estat sbsingle

replace breakdate = real(r(breakdate)) if ID==`i'

}

note that in the last line of loop, you are storing the output of the command in a variable which you will need to have created before running the loop.

hope this is helpful

Dear Adil Hazara thank you. off course it helps