Python机器学习：鸢尾花分类

[python]代码库

import pandas as pd
import numpy as np
from sklearn.datasets import load_iris
from sklearn.model_selection import train_test_split
from sklearn.neighbors import KNeighborsClassifier

iris = load_iris()
X = iris.data
y = iris.target

X_train, X_test, y_train, y_test = train_test_split(X, y, test_size=0.3, random_state=1)

knn = KNeighborsClassifier(n_neighbors=3)
knn.fit(X_train, y_train)

print("预测结果：", knn.predict(X_test))
print("准确率：", knn.score(X_test, y_test))