Hi all,
I am a beginner with STATA and I need to use the DEA methodology for my thesis.
I run 'help dea' and I downloaded some user-written command to run DEA in STATA from the STATA Journal. However, I am not able to follow step-by-step the commands used and to replicate the results and the graphs.
For example, the first step should be
'dea ivars = ovars' where ivars and ovars are the input and output variable lists.
I run 'dea input1 input2 = output1 output2 output3' in my file 'Input&Output'.dta but the result is 'variable dmu not found in option rownames() r(111);
In addition, my 'ivars' and 'ovars' are based on multi-years. How can I take into account this as well?
Many thanks for your help on this!!
Alex
I am a beginner with STATA and I need to use the DEA methodology for my thesis.
I run 'help dea' and I downloaded some user-written command to run DEA in STATA from the STATA Journal. However, I am not able to follow step-by-step the commands used and to replicate the results and the graphs.
For example, the first step should be
'dea ivars = ovars' where ivars and ovars are the input and output variable lists.
I run 'dea input1 input2 = output1 output2 output3' in my file 'Input&Output'.dta but the result is 'variable dmu not found in option rownames() r(111);
In addition, my 'ivars' and 'ovars' are based on multi-years. How can I take into account this as well?
Many thanks for your help on this!!
Alex