pandas-matplotlib绘制分组柱图

# -*-coding:utf-8 -*-
import pandas as pd
import matplotlib.pyplot as plt
students = pd.read_excel('C:/Users/asus/Downloads/pandas/010/Students.xlsx')
students.sort_values(by='2017',inplace=True,ascending=False)
print(students)
students.plot.bar(x='Field',y=["2016","2017"],color=["orange","red"])
plt.title('international students',fontsize=16,fontweight='bold')
plt.xlabel('Field',fontweight='bold')
plt.ylabel('Number',fontweight='bold')
ax = plt.gca()
ax.set_xticklabels(students['Field'],rotation=45,ha='right')
f = plt.gcf()
f.subplots_adjust(left=0.2,bottom=0.42)
# plt.tight_layout()
plt.show()