which class of data does the regression model run in r which type of data structure is used in a multivariate regression model? how to do a r regression with categorical variables what type of variables should be grouped in r if a variable is overlapping what is the r how to use categorical variables in regression what class is a negative what is the class of a dummy variable in r how to use multiple regression with categorical variables __________ represents the control variables for a linear regression. what type of variable in a linear regression model is positive how to find a negative class in regression model which of the following is the categorical variable to be used in regression models in r? definition of categorical variable in multiple regression what is the dummy variable in r why is r used for a class what is the difference in class and class in r which variable in multiple regression represents the overlapping categorical dummy variables in an experiment? what are the categorical variables in multiple regression r defining categorical variables