Hello together,

I am currently working on an efficiency study. For this I am using the data envelopment analysis (dea) package.

With my first runs everything worked fine with simple commands like

dea Expenses = Revenue
But after a few runs I get with the exactly same data the following error:

name: dealog
log: C:\Users\chris\OneDrive\Desktop\Stata Uni\dea.log
log type: text
opened on: 14 Jul 2019, 17:03:28
rankdea(): 3301 subscript invalid
<istmt>: - function returned error
r(3301);



Could somebody please help me to fix this problem? I already deleted the ado and reinstalled it, still the same problem...

Thank you very much!

Best Regards
Christoph