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| From | Sudeshna Pal <sudeshna.pal@gmail.com> |
| To | statalist@hsphsun2.harvard.edu |
| Subject | st: levpet |
| Date | Fri, 30 Jul 2010 09:39:05 -0700 (PDT) |
I am working with STATA 10 and trying to use the levpet command in the
following way:
tsset companyid year
panel variable: companyid (strongly balanced)
time variable: year, 1989 to 2008
delta: 1 unit
levpet logsales, free(logpowerfuel loglabor) proxy(logmaterial)
capital(logcapital) revenue
and I get the following error:
error #1 occurred in program nllp_bs_gmm
error . . . . . . . . . . . . . . . . . . . . . . . . Return code 196
nl___________ refused query, rc= ___________;
error # _________ occurred in program nl_________;
Your nlfunc program did not work properly with the nl command
Any suggestion as to how to solve this?
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