Hello, After development of recommendation engine with the R, before removal of outliers from data-set value of residual standard error was 1351 and after removal of outlier its 100. Still there is no accurate prediction which gives 10% correct(near) prediction. For more fitting i also have tried polynomial model with two ,three and four degree but still no improvement. Is there any most important thing to consider without R-squared or adjusted R-squared.
Where i am using dataset with linear regression model for prediction of product purchase revenue on the base of total numbers of time product added to cart, removed from cart, total numbers of page views of product page. For checking model prediction accuracy i am considering only minimum residual standard error. Thanks Vignesh [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.