search for: cxname

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2005 Jul 13
1
problems with MNP
...encountered in system file. > library(MNP) MNP: R Package for Fitting the Multinomial Probit Models Version: 1.3-1 URL: http://www.princeton.edu/~kimai/research/MNP.html > > res1 <- mnp(PREVOTE3 ~ 1, choiceX = list(1=UCLC, 2=UDLC, 3=UPLC), Error: syntax error > cXnames = "ut", data = small, n.draws = 500, burnin = 100, Error: syntax error > verbose = TRUE) Error: syntax error > > # another try giving arbitrary names to the values of the dependent variable > > res1 <- mnp(PREVOTE3 ~ 1, choiceX = list(Clinton=UCLC,...
2005 Apr 03
1
wrong signs using MNP.
...coefficients, and a few rows of the data. The dataset has 210 observations. Thanks, --Bill res1<-mnp(mc ~ 1, choiceX = list(a=cbind(ttme.1,gc.1,hinc), b=cbind(ttme.2,gc.2,0), c=cbind(ttme.3,gc.3,0), d=cbind(ttme.4,gc.4,0) ), cXnames = c("ttme","gc","hinc"), data = wide, n.draws = 1500, burnin = 50, base = "d", verbose = TRUE ) Coefficients: mean std.dev. 2.5% 97.5% (Intercept):a -1.003078 0.508752 -2.292813 -0.207 (Intercept):b -1.511963 0.582518 -...
2005 Dec 15
0
MNP - discrete choice experiment
...for the second alternative etc. - za2, zb2, zc2 price level for the first, second and third alternative I tried the following mnp command for testing: analysis <- mnp(cbind(y1, y2, y3) ~ 1, choiceX = list(y1=cbind(za1M, za1B, za2), y2=cbind(zb1M, zb1B, zb2), y3=cbind(zc1M, zc1B, zc2)), cXnames = list("M", "B", "price"), data=example, n.draws=500, burnin=100, thin=3, verbose=TRUE) My questions are: 1) How can I take into account that every respondent answers 4 choicesets? Or more generally, how can I obtain individual level estimates? 2) The MNP packag...
2007 May 13
0
Error in dimnames(x) <- dn
...1 3 10.08163 10.05406 10.07323 2 1 10.08163 10.05406 10.07323 3 2 10.08163 10.05406 10.07323 4 1 10.08163 10.05406 10.07323 5 2 10.08163 10.05406 10.07323 .........and 607 more > res1 <- mnp(choice ~ 1, choiceX = list(Clio= clio, Punto= punto, Polo= polo), cXnames = "price", data = c, n.draws = 100, verbose = TRUE) Error in dimnames(x) <- dn : length of 'dimnames' [2] not equal to array extent clio, punto and polo are the x's, I would appreciate if anyone helps me on this, Thanks, Ozlem Ipekci [[alternative HTML version delet...
2007 Jun 15
0
Coefficients and Covariances in MNP
...to put the coefficients and covariances into W, to construct W for each j. The coefficients and covariances are below. I f anyone help me on this, I would appreciate. ozlem. Call: mnp(formula = choice ~ 1, data = rowdata3, choiceX = list(Punto = PricePunto, Clio = PriceClio, Polo = PricePolo), cXnames = "price", base = "Polo", n.draws = 100, verbose = TRUE) Coefficients: mean std.dev. 2.5% 97.5% (Intercept):Clio -1.4559 0.6889 -2.7017 -0.387 (Intercept):Punto -0.1989 0.7180 -2.2192 0.893 price 10....