Construct dummy

[Lars Aabenhus]

Hello Statalists,

I am working on a corporate finance project where I analyze the effect of M&A deals on listed companies. I've downloaded data from orbis, but I can't figure out how to define the dummy I need to isolate the effect of the different deals. The data I have downloaded from Orbis has no years attached to the variables and that is actually what makes it impossible for me to figure it out. I am working with a pre- and post-merger period, which I would like to be able to isolate. Can anyone help?? THANKS.

[Dirk Enzmann]

Welcome to the Stata Forum. Are you aware that you are asking this question in the sub section "Mata" that discusses specifically questions to Stata's Mata program? I believe that your question belongs to the sub section "General".

Concerning the data you are trying to show us: Please, don't attach files like you did -- please read the complete Stata's FAQ (and especially #12) before posting!