How to rank value in each specific date of each firms

Hi all, I have data as follow (from 04Jan2012 to 31Dec2021) Code: * Example generated by -dataex-. To install: ssc install dataex clear ...

Reformatting a monthly date variable

I have a date variable in month-year format that looks like "2012m8". I got to that format using the command HTML Code: format m...

Graph Scale and Text when using Graph Combine Command

I want to combine graphs, but when I do, the formatting is almost always problematic. If I have three graphs I can put them on one page us...

weighted random effects model with clustered SE

Hello: I want to estimated a weighted RE model with clustered standard errors. The xtreg does not allow weights with the re option. The xt...

How can I select a study population matching a published prospective trial?

Dear Experts, I have a very large population database of patients who have been treated for localized prostate cancer with various therapi...

Estimate store using lincom

Hi everyone, I hope you are doing great. I am trying to store the results of a lincom to later use them in a coefficient test with results...

Asking for the explanation of the result of DDD ?

I am following Stata package to run the did_imputation of Borusyak,2021 in using the DiD imputation estimator The normal DiD estimator in ...