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Re: st: DEA command in Stata, error message


From   Scott Merryman <[email protected]>
To   [email protected]
Subject   Re: st: DEA command in Stata, error message
Date   Thu, 1 Aug 2013 04:52:17 -0500

Do the examples in the help file work  (you will need the ancillary
file  coelli_table6.4.dta)?

Scott


On Wed, Jul 31, 2013 at 2:27 AM, Alberto Zaffaroni - 1338011
<[email protected]> wrote:
> Hello,
>
> I am a MSc student at Bocconi University.
> I am writing my Master thesis and in order to complete data analysis I need to run the DEA (Data Envelopment Analysis) command using a dataset of input and output measures that I created.
> I have the dea.ado file installed in the directory on which Stata operates and everything seems to be ready to work.
> Unfortunately, when I try to run the DEA command, this error message is the only result:
>
>
> lp_phase2(): 3498 No Solution at Stage 1 and Phase 2.:[DMUi=1]
> _dealp(): - function returned error
> <istmt>: - function returned error
> r(3498);
>
> Can anybody help me trying to understand what's going on and what's the problem, please?
> I have looked for solutions everywhere but could not find any.
>
>
> Thanks in advance for your kind attention.
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