机器学习lab1 读取MNIST数据集+plot图片

X, y分别是什么

• https://www.cnblogs.com/xiaohuiduan/p/12635624.html

plt.imshow(x, cmap=‘gray’)

• 灰度图

plt.xticks([])

• Disable xticks.
• https://matplotlib.org/stable/api/_as_gen/matplotlib.pyplot.xticks.html?highlight=xticks#matplotlib.pyplot.xticks

代码

from sklearn.datasets import fetch_openml
import matplotlib.pyplot as