学习笔记----python绘图bar
2020-06-20 本文已影响0人
三叠纪的小黑猫
# python 绘制柱状图并保存PNG
import matplotlib.pyplot as plt
from matplotlib.pyplot import MultipleLocator
x = [1, 2, 3]
a = [1129, 973, 932]
b = [31, 107, 138]
labels = ['2017SEG', '2018SEG', '2019SEG']
plt.bar(x, a, 0.3, tick_label=labels)
plt.bar(x, b, 0.3, bottom=a, label='ML Paper')
plt.xticks(fontsize=15)
plt.yticks(fontsize=15)
font = {'size':15}
legend = plt.legend(prop=font)
#plt.show()
fig = plt.gcf()
fig.set_size_inches(18.5, 4.5)
fig.savefig('test.png', dpi=100)
