Python 数据可视化 极地柱状图

# -*- coding: utf-8 -*-"""Created on Tue Mar 9 20:16:57 @author: dujidan"""import numpy as npimport matplotlib.pyplot as plt# Compute pie slicesN = 20theta = np.linspace(0.0, 2 * np.pi, N, endpoint=False)radii = 10 * np.random.rand(N)width = np.pi / 4 * np.random.rand(N)ax = plt.subplot(111, projection='polar')bars = ax.bar(theta, radii, width=width, bottom=0.0)# Use custom colors and opacityfor r, bar in zip(radii, bars):bar.set_facecolor(plt.cm.viridis(r / 10.))bar.set_alpha(0.5)plt.show()