when do you add variables in a linear model can you tell when a covariate should be log transformed? if not, what model will you use? which variable should be transformed before model is created? should a linear model be log transformed how do you know when a covariate should be transformed what type of a variable is the log transform? what covariates should be log transformed before model is done which model to use when you are trying to find a good relationship for a predictor variable how do you find which covariate should be log transformed how should a covariate be log transformed what is the best way to test mlr models? what is the best way to test a linear model in mlr can a linear model be log transformed what variables must be transformed before modelling how to tell if model is transformed can a linear model be used as a log transform which iris variables should be log transformed before model is done? which coefficients should be transformed in log why do we need to make a regression with the residuals in an example model? how to test which variable in a linear model