Stata 18 error message in bysort egen

[Jala Youssef]

Hi everyone,

This below command used to work normally in Stata 17:

bysort country period: egen correlation=corr(var1 var2)

On Stata 18, it displays this error message: "unknown egen function corr()".

The same issue exists if I use var as a function (instead of corr in the above code).

I would be grateful if you could advise.

Many thanks in advance.

Jala


Edit: Apologies I found a solution with egenmore using ssc install. Thanks.

[Rich Goldstein]

the corr() function is part of the user-written -egenmore- package; it sounds like either you got a new machine and did not install this or that it appears someplace where Stata can't find it