Robust LOWESS Fit Compared to Standard Regression
- LOWESS curve can display the relationships that are not visible in a standard linear regression analysis. It is another way of depicting the
"local" relationship between a response variable and a predictor variable over parts of their ranges, which may differ from a "global"
relationship determined using a standard linear regression.
An Example of Standard Linear Regression and the Corresponding 95% CI Band
Robust LOWESS Fit to the Same Data and the Corresponding Weighted 95% CI