SHAZAM Questions and Answers (Q&A) - RSS feedhttp://community.econometrics.com/questions/SHAZAM Econometrics, Statistics and Analytics Communityen<font color="white">Copyright <b>SHAZAM Analytics, 2018</b></font>Sat, 21 Feb 2015 05:03:09 +0000Working with dummy variableshttp://community.econometrics.com/question/594/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.ToluFri, 30 Jan 2015 01:27:51 +0000http://community.econometrics.com/question/594/How do I run a combined Box-Cox-Box-Tidwell regression?http://community.econometrics.com/question/601/how-do-i-run-a-combined-box-cox-box-tidwell-regression/I need some advice on how to go about executing a combined Box-Cox-Box-Tidwell regression for an equation in which there are about 8 independent variables. Of these, 4 are continuous variables while the remainder are dummy variables. Is there a way to run this regression such that only the dependent variable and the RHS continuous variables are transformed? What is the command?ToluSat, 21 Feb 2015 05:03:09 +0000http://community.econometrics.com/question/601/