Python绘制六边形分箱图

hexbin 是一种二维直方图绘图，其中的分箱是六边形，颜色表示每个分箱内的数据点数量。

import matplotlib.pyplot as plt import numpy as np # 固定随机状态以保证可重复性 np.random.seed(19680801) n = 100_000 x = np.random.standard_normal(n) y = 2.0 + 3.0 * x + 4.0 * np.random.standard_normal(n) xlim = x.min(), x.max() ylim = y.min(), y.max() fig, (ax0, ax1) = plt.subplots(ncols=2, sharey=True, figsize=(9, 4)) hb = ax0.hexbin(x, y, gridsize=50, cmap='inferno') ax0.set(xlim=xlim, ylim=ylim) ax0.set_title("Hexagon binning") cb = fig.colorbar(hb, ax=ax0, label='counts') hb = ax1.hexbin(x, y, gridsize=50, bins='log', cmap='inferno') ax1.set(xlim=xlim, ylim=ylim) ax1.set_title("With a log color scale") cb = fig.colorbar(hb, ax=ax1, label='counts') plt.show()

参考文献：https://matplotlib.org/stable/gallery/statistics/hexbin_demo.html