which data structure is used for a regression? r what is the r variable that represents the class of a regression? how to visualize the effects of a regression in r what is the data structure for the class in a regression? r how to visualize effect of a regression which data structure is used for classification and class regression? r create a variable that represents each type of variable what is r class data what is the r class for a class r regression effects what is the class in r r class class class class what is the function of class in r what is the liability of class in r what does class mean in a regression r a class is used for what class class r vs class what's the r function for a class r regression? what is the class of r regression which of the following is the categorical function for the regression model used with the class