what is r squared for what is r squared for forecasting what is the measure of exponential smoothing what is the function of exponential smoothing in time series? what is the use of r squared what is exponential smoothing? why use exponential smoothing when forecasting what does linear regression compare to exponential smoothing what is r squared what is r squared what measures exponential smoothing? when is r squared appropriate for forecasting what is r squared for in prediction? why use exponential smoothing can r squared predict smoothing what is the r squared used for? is exponential smoothing appropriate for forecasting does exponential smoothing affect r squared is it appropriate when forecasting to use $r2$ as the measure of how well exponential smoothing fits a data set for the purpose of time series forecasting? what is the difference between linear regression, logarithmic regression, and exponential smoothing in forecasting