交叉验证

在 R 中使用 caret 的机器学习

Zach Mayer

Data Scientist at DataRobot and co-author of caret

交叉验证

在完整数据集上拟合最终模型

交叉验证

# Set seed for reproducibility
set.seed(42)

# Fit linear regression model
model <- train(
  mpg ~ hp, mtcars, 
  method = "lm",
  trControl = trainControl(
    method = "cv", 
    number = 10,
    verboseIter = TRUE
  )
)

+ Fold01: intercept=TRUE 
- Fold01: intercept=TRUE 
...
- Fold10: intercept=TRUE 
Aggregating results
Fitting final model on full training set

让我们来练习！

在 R 中使用 caret 的机器学习