Machine learning and data mining

Weighting model fit with ctree in party

March 15, 2010 | heuristicandrew

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-res... [Read more...]

Plot ROC curve and lift chart in R

December 18, 2009 | heuristicandrew

This tutorial with real R code demonstrates how to create a predictive model using cforest (Breiman’s random forests) from the package party, evaluate the predictive model on a separate set of data, and then plot the performance using ROC curves ... [Read more...]

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