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Hello everyone, I am using *mlogit* to analyse my choice experiment data. I have *3 alternatives* for each individual and for each individual I have *9 questions*. I have a response from *516 individuals*. So it is a panel of...

Dear all, Presently I am working on designing a questionnaire for my discrete choice experiment. I intend to use R for the "fractional factorial design". I have the following objective- The respondent has to choose one out of 4 objects...

David, My apologies with the first one. I was checking different tutorials on mlogit where they were using mlogit.data, so I ended up using it. I am not getting what you are saying by the "duplicates in first two...

Hello, I tried to reduce the size of my dataframe. Now I have 57 columns of which 29 are already dummy coded. If I run *mldata1<- mlogit.data(mydata1, shape = "long", alt.var = "Alt_name", choice = "Choice_binary", id.var...

Hello Rui, Thanks a lot for your response. But, I will surely say that the data I attached is in long format as it has 18 rows (3 alternatives*3 questions* 2 individuals). Had it been a wide format data...

Hello, Here is the result of summary(mydata) summary(mydata) IND Block QES STR ALT Min. : 1.0 Min. :1.000 Min. :1 Min. : 101 Min. :1 1st Qu.:129.8 1st Qu.:1.000 1st Qu.:3 1st Qu...

Hello David and everyone, I am really sorry for not abiding by the specific guidelines in my prior communications. I tried to convert the present email in plain text format (at least it is showing me so in my gmail...

Dear all, Presently I am working on designing a questionnaire for my discrete choice experiment. I want to generate an orthogonal fractional factorial design for the following problem- The respondent has to choose one out of 4 objects (*X1, X2...