How would I create a JFreeChart scatterplot best fit line

Question

I have an arraylist of points I want to include in a JFreeChart scatterplot. That works fine, but I now want a best fit line on it. After some searching, JFreeChart doesn\'t sup

Answer 1

Use the built-in Regression method getOLSRegression() or a statistical library such as Apache Commons Math to determine the slope and intercept of such a line using simple regression. Add your original data to a scatter plot, as shown here. Add an XYLineAnnotation representing the endpoints of your line, as shown here.