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2011 Aug 04
0
Problems with Z in rhierMnlRwMixture using bayesm
...rMnlRwMixture in the bayesm package for the analysis of data from a choice experiment. I am trying to follow the margarine example set out in the bayesm manual (p.28). However, after several attempts I keep getting an error message with regards to my Z matrix as below. > Error in Z %*% t(matrix(olddelta, ncol = nz)) : >requires numeric/complex matrix/vector arguments I think the problem is arising from the following lines in the code that I am running. >Z=NULL >nlgt=length(lgtdata) >for(i in 1:nlgt) { >Z=rbind(Z,Demog[Demog[,1]==lgtdata[[i]]$id,3:9]) I am creating a Z matrix fro...