Notice: On April 23, 2014, Statalist moved from an email list to a forum, based at statalist.org.
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
st: RE: opreg and levpet not working
From
Jan Bryla <[email protected]>
To
"[email protected]" <[email protected]>
Subject
st: RE: opreg and levpet not working
Date
Tue, 1 Mar 2011 15:39:11 +0100
Jerry,
Regarding the -levpet- procedure I encountered something similar, but it turned out that the reason was that I had not placed the nllp_bs_gmm.ado file in the appropriate directory. Placing it in ".../ado/plus/n" did the trick. I haven't encountered the problem with -opreg- to which you are refering - sorry!
Hope this helps
Jan Bryla
The Danish Bankers Association
-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Jerry Slice
Sent: 1. marts 2011 04:55
To: [email protected]
Subject: st: opreg and levpet not working
I'm trying to estimate a production function using opreg to control for selection, and levpet without the selection control. Using Stata 11.1, I get the following error on both of them:
(levpet) no observations
error #2000 occurred in program nllp_bs_gmm
(opreg) no observations
an error occurred when bootstrap executed opreg
The commands I am using are:
opreg sales, exit(exit) state(cap) proxy(inv) free(emp)
levpet sales, free(emp) proxy(inv) capital(cap) revenue
I have no missing data values, so I don't understand what the issue is here. There are no mis-casts as strings, and everything is properly formatted. Does anyone know how to fix this issue?
Thanks,
Jerry
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/
*
* For searches and help try:
* http://www.stata.com/help.cgi?search
* http://www.stata.com/support/statalist/faq
* http://www.ats.ucla.edu/stat/stata/