Created
February 8, 2020 10:17
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rpart pruning
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| library(data.table) | |
| library(rpart) | |
| d_train <- fread("https://s3.amazonaws.com/benchm-ml--main/train-0.1m.csv") | |
| md <- rpart(ifelse(dep_delayed_15min=="Y",1,0) ~ ., d_train, | |
| control = rpart.control(cp = 0.001)) | |
| plotcp(md) | |
| printcp(md) | |
| md2 <- prune(md, cp=0.004) |
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