On Fri, 7 Oct 2005, Dimitri Giunchi wrote: > Hi all, > I was unable to obtained a smoothed line using the loess function.I used the > following code reported in the examples of R documentation: > cars.lo <- loess(dist ~ speed, cars) > Then I tried to plot both the data and the smoothed line > plot(cars)lines(cars.lo) > but what I obtained is simply a broken line joining all the data points.I > tried with different spans, but the results did not change. > > Does anyone know what's going wrong?
Yes. lines(cars.lo) plots the original data stored in the loess fit. You need to predict, or use scatter.smooth to do it for you. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
