Hi to all,
I'm running a multinomial panel data model in gllamm, the syntax is:
gllamm AID MED GDE IDVL1 ITEA EDAD PERSOC IPNCL1 IPNFL1 IPNML1 IPNDL1 IPRL1 DM1N NCM1N PX PATTL1 InFIDT , i(Identi) link (mlogit) base (1) fam (binom) robust adapt nip (12)
After running the 6th Newton-Raphson iteration I get the error:
"TwoStep: did not reach goal"
However, I get a satisfactory output.
Does anybody knows what does this error means? How could I correct it?
Thank you so much in advance.
Claudio
*
* 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/