Togaware DATA MINING
Desktop Survival Guide
by Graham Williams
Google

The ROC Curve

Image rplot-rocr-survey-tpfp


pdf("graphics/rplot-rocr-survey-tpfp.pdf")
library(rpart)
library(ROCR)
load("survey.Rdata")
survey.rp <- rpart(Salary.Group ~ ., data=survey)
survey.pred <- predict(survey.rp, data=survey)
pred <- prediction(survey.pred[,2], survey$Salary.Group)
perf <- performance(pred, "tpr", "fpr")
plot(perf)
dev.off()

http://rattle.togaware.com/code/rplot-rocr-survey-tpfp.R



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