what is the difference between a robust model and a residual model? what is the difference between a robust model and residuals? what is the difference between a robust and residual model which model uses r for heteroscedasticity what is the function of logtrans for regression what is residuals vs fittted what is heteroscedasticity vs fitted why residuals show heavy tails r regression what do residuals vs fitted mean what does the residual plot in robust model tell me how to find residuals of robust model can you test heteroscedasticity in r what is the difference between a robust and heteroscedastic regression model which robust model shows residuals with constant variance what is residual vs fitted in r what is the difference between a robust model and regression? what is residual vs fit how to show residuals in robust models what is the difference between a robust model and residual what is the residual plot in r