when performing backward elimination a variable has several levels how to handle categorical variables with multiple levels in r if a variable is a categorical variable what is it how to remove categorical variables can we do backward elimination on a class variable why dummy variables in r backward elimination how to handle categorical variables what does a step do backward elimination? how to handle dummy variable backward elimination r which variable can be removed together what should be done with dummy variables in r what is the correct way to handle dummy variable backwards can you remove all the levels of a categorical variable at once when do you do backward elimination can r remove all dummy variables how do you handle a categorical variable with multiple levels? when removing a dummy variable from a model should each dummy variable be removed separately? r how is categorical variable handled what is the name of the dummy variable? when do you use dummy variables in a backward elimination model