why is the singular data generated in r r how to set dummy model what is the singularity for dummy variable r how to find exact singularity of data in r why is r a dummy model if system is exactly singular what is the dummy what is the exact singularity of the dummy variable in a r model? how to find out if a variable is singular in r what is r error with dummy why i get singularity when i set dummy why does r give exact singularity if a variable is singular what is the function of mlogit? what is the difference between the dummy and the basic model in r when to use dummy variable in r if the id of a dummy variable is odd or even what is the error? why is a dummy variable in a simple logistic regression model why is mlogit used when a dummy variable is added which r variable has exact singularity if data is singular what is mlogit error r dummy is exact singularity