


Local Regression and Likelihood, Figure 2.3. Using different smoothing parameters.


0001 % Local Regression and Likelihood, Figure 2.3. 0002 % 0003 % Using different smoothing parameters. 0004 0005 load ethanol; 0006 0007 alp = [0.2 0.4 0.6 0.8]; 0008 for i=1:4 0009 figure(i); 0010 fit = locfit(E,NOx,'alpha',alp(i)); 0011 res = residuals(fit); 0012 fit2 = locfit(E,res,'alpha',0.2); 0013 lfplot(fit2); 0014 title(strcat('a = ',num2str(alp(i)))); 0015 ylabel('Residual'); 0016 hold on; 0017 plot([min(E) max(E)], [0 0], ':'); 0018 hold off; 0019 end;