(This article was first published on

**Heuristic Andrew » r-project**, and kindly contributed to R-bloggers)Conditional inference trees (ctree) in package party allows weighting which is useful when one classification outcome is more important than another. Useful examples are not difficult to imagine: in a marketing direct mailing, a false positive (non-response) costs just paper and postage (say, $0.50) while a true positive (response) may be worth $100.00. In a […]

To

**leave a comment**for the author, please follow the link and comment on their blog:**Heuristic Andrew » r-project**.R-bloggers.com offers

**daily e-mail updates**about R news and tutorials on topics such as: Data science, Big Data, R jobs, visualization (ggplot2, Boxplots, maps, animation), programming (RStudio, Sweave, LaTeX, SQL, Eclipse, git, hadoop, Web Scraping) statistics (regression, PCA, time series, trading) and more...