search for: multinomrob

Hi, I would like to use the multinomRob function to test election results. However, depending on which independent variables I include and how many categories I have in the dependent variable, the model cannot be estimated. My data look like this (there are 68 observations): > head(database) RESTE09 GAUCHE09 PDC09 PLR09 UD...

We would like to announce the availability on CRAN of a new package multinomRob. It does robust estimation of overdispersed multinomial regression models. The package is also able to estimate overdispersed grouped multinomial logistic and multivariate-t logistic models. The code is relatively general; for example, it allows for equality constraints across parameters and it c...

We would like to announce the availability on CRAN of a new package multinomRob. It does robust estimation of overdispersed multinomial regression models. The package is also able to estimate overdispersed grouped multinomial logistic and multivariate-t logistic models. The code is relatively general; for example, it allows for equality constraints across parameters and it c...

...and Y_3, and covariates X_1 and X_2, I might want to impose the equality constraint that \beta_{2,1} = \beta_{3,2} that is, that the effect of X_1 on the logit of Y_2 is the same as the effect of X_2 on the logit of Y_3. Is there an existing facility or package in R for doing this? Would multinomRob fit the bill? Many thanks, Roger -- Roger Levy Email: rlevy at ucsd.edu Assistant Professor Phone: 858-534-7219 Department of Linguistics Fax: 858-534-4789 UC San Diego Web: http://ling.ucsd.edu/~rlevy

I haven't seen this cryptic warning before: > update.views('Robust') Warning message: In update.views("Robust") : The following packages are not available: covRobust, distr, FRB, MASS, mblm, multinomRob, mvoutlier, quantreg, RandVar, rgam, RobAStBase, robfilter, RobLox, RobRex, robust, RobustAFT, robustbase, ROptEst, ROptRegTS, rrcov, sandwich, wle > library(covRobust) > It is puzzling because — as the second command shows — the package covRobust is installed. Here is my > sessionInfo(...

I'm interested in analysing some of my data using multinomial regression. I have been using nnet's multinom so far. However, I found that some of the data shows overdispersion and hence want to change to robust multinomial regression, package: multinomRob I have succesfully implemented Agresti's (2002) alligator example (chapter 7, p 268) using the option MLEonly=TRUE as there are too few observations to estimate overdispersed MNL (commented code provided below). However, when I tried to run my data, I get the error mesagge (commented code prov...

Hello all, I'm trying to use the user-created multinomRob to make some models for my data. While documentation for that function is fine and I think I'm using it correctly, I'm getting the following error when I try to use my lists of variables. data <- read.csv("data.csv", header=FALSE) subj1 <- data.frame(radius=data$V3[9:11],...

I see something new and unexpected here. > update.packages() trying URL `http://cran.r-project.org/src/contrib/PACKAGES' Content type `text/plain; charset=iso-8859-1' length 163467 bytes opened URL .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... .......... ......... downloaded

Hi R-masters I need yours help about a problema in one of may ongoing researchers. In my research the subjects (20 in total) answer 60 questions (20 type G, 20 type S and 20 type P). Which questions is classified about 3 factor (2 level each) and the subject score with 2 scale (not integer value is possible but rare): Val range -7 to 7 and other Car range 1 to 7. This a code to fake database

...ev","mmlcr","mnormt","MNP","moc","modeltools","moments","monoProc","monreg","mprobit","MPV","MSBVAR","msm","muhaz","multcomp","multilevel","multinomRob","multtest","mvbutils","mvnmle","mvnormtest","mvoutlier","mvpart","mvtnorm","NADA","ncomplete","ncvar","negenes","network","neural","nFDR","NISTnls&q...

...qa (1.1.8), miscTools (0.6-2), mitools (2.0.1), mixAK (1.0), mixdist (0.5-3), mixlow (1.0.0), mixOmics (2.7-1), mixtools (0.4.4), mlegp (3.1.1), mlmmm (0.3-1.2), mlogit (0.1-7), mokken (2.3), monomvn (1.8-3), mrdrc (1.0-5), msm (0.9.7), mstate (0.2.4), mtsc (0.0.2), muhaz (1.2.5), multcomp (1.1-7), multinomRob (1.8-4), multtest (2.4.0), mutatr (0.1.2), mvabund (0.1-10), mvbutils (2.5.1), mvtnorm (0.9-92), nanop (1.0-1), ncdf (1.6.1), ncvreg (2.1), NetCluster (0.2), NetData (0.2), networksis (1.4), nFactors (2.3.2), nFDR (0.0-1), nleqslv (1.6.1), nltm (1.4.1), NMF (0.4.8), nnls (1.3), nodeHarvest (0.5), n...