import train_test_split
时间: 2023-10-05 11:12:18 浏览: 51
I'm sorry, but as an AI language model, I cannot import modules or libraries. However, I can help you understand what the train_test_split function does.
train_test_split is a function used in machine learning to split a dataset into two subsets: a training set and a testing set. The goal is to use the training set to train a machine learning model and the testing set to evaluate the model's performance.
The function takes several arguments, including the dataset to be split, the size of the testing set (usually a percentage of the total dataset), and a random state seed (used to ensure the same random splits are generated each time the split is performed).
The output of the function is four subsets: X_train (the features of the training set), X_test (the features of the testing set), y_train (the target variable of the training set), and y_test (the target variable of the testing set).
Overall, train_test_split is a crucial tool in machine learning for ensuring that a model is not overfitting to the training data and can generalize well to new, unseen data.