Working with dummy variables
I have some dummy variables in my dataset. The summary statistics of my variables specifies the minimum values of each of these dummies as 0.0000E11 for instance. I am trying to implement a combined Box-Cox and Box-Tidwell estimation which requires that all variables are strictly positive. Shazam (my students licence) keeps returning an error code because of my dummies. I will appreciate some advise on how to overcome this problem.
Can you post your command script to SHAZAM Help by email so we can look at it. There is not enough detail here to understand the cause of your trouble.