python可视化笔记

1、图片输出中文字题

import matplotlib.pyplot as plt
plt.rcParams['font.sans-serif'] = ['Arial Unicode MS']

不行的话可以参考https://tangxing.blog.csdn.net/article/details/108843288?spm=1001.2101.3001.6650.1&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1.pc_relevant_default&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1.pc_relevant_default&utm_relevant_index=2 设置不同的字体试试。

2、绘制多个subplot

数据如下：

fig = plt.figure(figsize=(10,6), dpi=200)

ax1 = plt.subplot(221)
df_hw_pv[["ecpm_0", "ecpm_1"]].plot(ax=ax1)
# 设置标题
# ax1.set_title("eCPM")

ax2 = plt.subplot(222)
df_hw_pv[["ctr_0", "ctr_1"]].plot(ax=ax2)

ax3 = plt.subplot(223)
df_hw_pv[["cvr_0", "cvr_1"]].plot(ax=ax3)

ax4 = plt.subplot(224)
df_hw_pv[["ctcvr_0", "ctcvr_1"]].plot(ax=ax4)

fig.tight_layout()

plt.show();