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旧 蠍磯. |
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1 #library(rpart) library("rpart.utils") library("rpart.plot") fit<-rpart(Reliability~.,data=car.test.frame) rpart.subrules.table(fit) plotcp(fit) rpart.plot(fit, type=4) [edit]
2 #library(rpart) model <- rpart(factor(is_out)~., data=training, method="class") plot(model, uniform=TRUE) text(model, use.n=T) library(rattle) fancyRpartPlot(model) [edit]
3 ##install.packages("tree") library(tree) ir.tr <- tree(Species ~., iris) ir.tr ir.tr1 <- snip.tree(ir.tr, nodes = c(12, 7)) summary(ir.tr1) par(pty = "s") plot(iris[, 3],iris[, 4], type="n", xlab="petal length", ylab="petal width") text(iris[, 3], iris[, 4], c("s", "c", "v")[iris[, 5]]) partition.tree(ir.tr1, add = TRUE, cex = 1.5) # 1D example ir.tr <- tree(Petal.Width ~ Petal.Length, iris) plot(iris[,3], iris[,4], type="n", xlab="Length", ylab="Width") partition.tree(ir.tr, add = TRUE, cex = 1.5)partition.tree()襯 覃 螳 蠏碁殊 覲 . ![]() [edit]
5 谿瑚襭 #
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