An option in Linear Regression is to fit the intercept. If the box is not checked, the intercept should be zero. This seems to work when Linear Regression is given the data directly. But fails to work when coupled with Polynomial Regression (from Educational add-on):
when Fit intercept is checked, Polynomial Regression returns the intercept of 0 (should be non-zero)
toggling Fit intercept in Linear Regression does not change the graph in Polynomial Regression, that is, the graph shows the same model and does not respond to any changes in the Fit intercept setting
What's wrong?
An option in Linear Regression is to fit the intercept. If the box is not checked, the intercept should be zero. This seems to work when Linear Regression is given the data directly. But fails to work when coupled with Polynomial Regression (from Educational add-on):
How can we reproduce the problem?
Use the workflow as shown and paint some data: