Hi Felipe On 18 September 2011 09:09, Felipe Nunes <felipnu...@gmail.com> wrote: > Thanks, Arne! > But I'm having another problem now. When I transform my data into a > pdata.frame form and try to run a tobit model with random effects I get an > error. Below I provide the head of my data, the code I used and the error > message. Any help? >> head(pdata) > X X.1 year mun.cod uf.cod uf.name > mun.name uf.mun > ACACRELANDIA-2003 ACACRELANDIA-2003 1 2003 1200013 12 AC > ACRELANDIA ACACRELANDIA > ACACRELANDIA-2004 CEIBIAPINA-2003 5561 2004 1200013 12 AC > ACRELANDIA ACACRELANDIA > ACACRELANDIA-2005 MGARACUAI-2007 11121 2005 1200013 12 AC > ACRELANDIA ACACRELANDIA > ACACRELANDIA-2006 MGSAO GERALDO-2006 16681 2006 1200013 12 AC > ACRELANDIA ACACRELANDIA > ACACRELANDIA-2007 PBSERTAOZINHO-2005 22241 2007 1200013 12 AC > ACRELANDIA ACACRELANDIA > ACACRELANDIA-2008 PRPIEN-2008 27801 2008 1200013 12 AC > ACRELANDIA ACACRELANDIA > transfers populat agric.pib indust.pib servic.pib apu.pib > tax.pib pib > ACACRELANDIA-2003 920 8695 31744.92 5292.439 26942.19 15955.14 > 4527.178 68506.73 > ACACRELANDIA-2004 0 10668 48947.97 9353.529 33134.56 19922.54 > 5825.801 97261.86 > ACACRELANDIA-2005 49287 11451 56291.90 11214.051 39326.32 23340.46 > 7661.003 114493.30 > ACACRELANDIA-2006 385000 11786 55290.26 11976.119 46405.99 27401.64 > 7730.059 121402.40 > ACACRELANDIA-2007 1599730 11520 68478.03 15526.679 54555.67 31382.93 > 7550.055 146110.40 > ACACRELANDIA-2008 1295000 11987 61736.50 12812.245 63688.96 37518.87 > 7824.615 146062.30 > bol.fam ifdm mayor.party mayor.num > mayor.name mayor.vot > ACACRELANDIA-2003 0 0.4225000 PSDB 45 SEBASTI\xeaO > BOCALOM RODRIGUES 2394 > ACACRELANDIA-2004 402 0.3943083 PSDB 45 SEBASTI\xeaO > BOCALOM RODRIGUES 2394 > ACACRELANDIA-2005 742 0.5401000 PSDB 45 SEBASTI\xcdO > BOCALOM RODRIGUES 2173 > ACACRELANDIA-2006 779 0.5138000 PSDB 45 SEBASTI\xcdO > BOCALOM RODRIGUES 2173 > ACACRELANDIA-2007 932 0.5109000 PSDB 45 SEBASTI\xcdO > BOCALOM RODRIGUES 2173 > ACACRELANDIA-2008 968 0.5593250 PSDB 45 SEBASTI\xcdO > BOCALOM RODRIGUES 2173 > mayor.vot.per > mayor.coalt voters.able > ACACRELANDIA-2003 0.5901 PSDB / PT / PC do B / PV / PMN / PSB / PPS / > PDT 6422 > ACACRELANDIA-2004 0.5901 PSDB / PT / PC do B / PV / PMN / PSB / PPS / > PDT 6422 > ACACRELANDIA-2005 0.4082 PP / PDT / PMDB / PPS / PFL / > PSDB 6422 > ACACRELANDIA-2006 0.4082 PP / PDT / PMDB / PPS / PFL / > PSDB 6422 > ACACRELANDIA-2007 0.4082 PP / PDT / PMDB / PPS / PFL / > PSDB 7548 > ACACRELANDIA-2008 0.4082 PP / PDT / PMDB / PPS / PFL / > PSDB 7548 > presd.turnout lula.vot lula.vot.per transfers.cap pt.dummy > pres.turnout.cap > ACACRELANDIA-2003 4282 2202 0.51425 0.1058079 0 > 0.4924669 > ACACRELANDIA-2004 4282 2202 0.51425 0.0000000 0 > 0.4013873 > ACACRELANDIA-2005 4282 2202 0.51425 4.3041656 0 > 0.3739411 > ACACRELANDIA-2006 4282 2202 0.51425 32.6658748 0 > 0.3633124 > ACACRELANDIA-2007 5461 2422 0.44400 138.8654514 0 > 0.4740451 > ACACRELANDIA-2008 5461 2422 0.44400 108.0337032 0 > 0.4555769 > pib.cap mun.vote mun.vote2 mun.vote3 mayor.party.r > mayor.party.r2 lula.vot.weight > ACACRELANDIA-2003 7.878865 1 PT 0.PT 0 > 2.Opposition 5.084315e-06 > ACACRELANDIA-2004 9.117160 1 PT 0.PT 0 > 2.Opposition 5.084315e-06 > ACACRELANDIA-2005 9.998542 1 PT 0.PT 0 > 2.Opposition 5.084315e-06 > ACACRELANDIA-2006 10.300560 1 PT 0.PT 0 > 2.Opposition 5.084315e-06 > ACACRELANDIA-2007 12.683194 0 PSDB 1.PSDB 0 > 2.Opposition 5.592285e-06 > ACACRELANDIA-2008 12.185059 0 PSDB 1.PSDB 0 > 2.Opposition 5.592285e-06 > trans.dummy transfers.cap.lag year2 district term > pt.pt pt.coa pt.opp psdb.pt > ACACRELANDIA-2003 1 NA 2003-2004 PT/Opo 0 > 0 0 1 0 > ACACRELANDIA-2004 0 NA 2003-2004 PT/Opo 0 > 0 0 1 0 > ACACRELANDIA-2005 1 474.56074 2005-2006 PT/Opo 0 > 0 0 1 0 > ACACRELANDIA-2006 1 22.94781 2005-2006 PT/Opo 0 > 0 0 1 0 > ACACRELANDIA-2007 1 0.00000 2007-2008 PSDB/Opo 1 > 0 0 0 0 > ACACRELANDIA-2008 1 0.00000 2007-2008 PSDB/Opo 1 > 0 0 0 0 > psdb.coa psdb.opp time transf.log > ACACRELANDIA-2003 0 0 1 -2.236723 > ACACRELANDIA-2004 0 0 2 -6.907755 > ACACRELANDIA-2005 0 0 3 1.459816 > ACACRELANDIA-2006 0 0 4 3.486362 > ACACRELANDIA-2007 0 1 1 4.933513 > ACACRELANDIA-2008 0 1 2 4.682453 > tob6 <- censReg(transfers.cap ~ pt.pt + psdb.pt + pt.opp + pt.coa + psdb.coa > + transfers.cap.lag + pib.cap + ifdm + log(populat) + mayor.vot.per + > bol.fam + factor(uf.name) + factor(year), left=0, right=Inf, method="BHHH", > nGHQ=15, data = pdata) > Error in maxNRCompute(fn = logLikAttr, fnOrig = fn, gradOrig = grad, > hessOrig = hess, : > NA in the initial gradient
Please try to use the latest development version of the censReg package, i.e. version 0.5-7 which is available at R-Forge [1] (see [2], [3], and [4]). [1] https://r-forge.r-project.org/R/?group_id=256 [2] http://tolstoy.newcastle.edu.au/R/e15/help/11/09/7037.html [3] http://tolstoy.newcastle.edu.au/R/e15/help/11/09/7288.html [4] http://tolstoy.newcastle.edu.au/R/e15/help/11/09/7307.html /Arne -- Arne Henningsen http://www.arne-henningsen.name ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.