下面是一个简单的例子,展示了如何使用Python和机器学习库scikitlearn来解一个简单的分类问题:
python
from sklearn.datasets import load_iris
from sklearn.model_selection import train_test_split
from sklearn.linear_model import LogisticRegression
加载鸢尾花数据集
iris = load_iris()
X = iris.data
y = iris.target
划分训练集和测试集
X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.2, random_state=42)