python可视化-matplotlib学习2

本目承接该系列上一目，总结更多的我用到的的画图技巧。

柱状图(横向)

import matplotlib.pyplot as pltfrom matplotlib import cmimport numpy as nplabel = ['a', 'b', 'c', 'd', 'e', 'f']x = sorted([1234, 221, 765, 124, 2312, 890])idx = np.arange(len(x))color = cm.jet(np.array(x) / max(x))plt.barh(idx, x, color=color)plt.yticks(idx + 0.4, label)plt.grid(axis='x')plt.xlabel('Revenues Earned')plt.ylabel('Salespeople')plt.title('Top 12 Salespeople(2012)\n(in USD)')plt.show()