search for: flevel1

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2010 Aug 13
1
mlogit error
...d 1000 observations. I get the following error: Error in `row.names<-.data.frame`(`*tmp*`, value = c("NA.NA", "NA.NA", : duplicate 'row.names' are not allowed In addition: Warning message: non-unique value when setting 'row.names': ‘NA.NA’ My code: > flevel1$Q120<-as.factor(flevel1$Q120) > MData<-mlogit.data(flevel1, varying=NULL,choice="Q120", shape="wide") > LogitModel<-mlogit(flevel1$Q120~1|flevel1$Q92, data=MData) MData[1:10,] Q56 Q92 Q102 Q119 Q120 1.1 10 7 10 10 FALSE 1.10 10 7 10 10 TRUE...