I have to make a regression within a data panel and I received
this errors: once as the variabile have not been created and the other
time as the variable already exists.
Could you please help me? What that these errors mean?
Thanks a lot
Alejandra
gen lwbill=log(1+wbill)
lwbill already defined
r(110);
. gen ltfp1_ols = lrva - _b[lrk]*lrk - _b[lwbill]*lwbill- _b[lrm]*lrm if
e(sample
> )
[lwbill] not found
r(111);
*
* For searches and help try:
* http://www.stata.com/support/faqs/res/findit.html
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/