求python写的随机森林的roc代码

Question

在c论坛上看到学长写出了这个代码，求学长分享。谢谢

Answer 1

随机森林在R packages和Python scikit-learn中的实现是当下非常流行的，下列是在R和Python中载入随机森林模型的具体代码：
Python

#Import Library
fromsklearn.ensemble import RandomForestClassifier #use RandomForestRegressor for regression problem
#Assumed you have, X (predictor) and Y (target) for training data set and x_test(predictor) of test_dataset
# Create Random Forest object
model= RandomForestClassifier(n_estimators=1000)
# Train the model using the training sets and check score
model.fit(X, y)
#Predict Output
predicted= model.predict(x_test)

R Code

library(randomForest)
x<- cbind(x_train,y_train)
# Fitting model
fit<- randomForest(Species ~ ., x,ntree=500)
summary(fit)
#Predict Output
predicted= predict(fit,x_test)