Decision tree.md

Decision Tree - Build decision trees to analyse important prognostic factors influencing breast cancer survival prediction

load the packages

library (rpart) library (rpart.plot) library (party)

read file

all_data <- read.csv (file='D:/model_evaluation/all_data.csv')

compute decision tree (select variables)

tree1 <- ctree (V24 ~ V9+V22+V23, data = all_data) #Stage, total lymph nodes, positive Lymph nodes

Plot the decision tree

plot (tree1)

Repeat the steps with different clusters of data and variables

change more

change testing