012_饼图

 

 

import pandas as pd
import matplotlib.pyplot as plt


if __name__ == '__main__':
    student = pd.read_excel("C:/Users/123/Desktop/pandas/012_饼图/Students.xlsx")
    print(student.head)

    student = student.set_index("From")    # 设置标签
    # 逆时针
    # student["2017"].sort_values(ascending = True).plot.pie(fontsize = 8)    # 逆时针
    student["2017"].plot.pie(fontsize = 8, counterclock = False, startangle = -270)  # 逆时针

    # 顺时针
    # student["2017"].sort_values(ascending = True).plot.pie(fontsize = 8, startangle = -270)    # 顺时针
    # student["2017"].plot.pie(fontsize = 8, counterclock = False)  # 逆时针

    plt.title("Source of international Students", fontsize = 16, fontweight = "bold")
    plt.ylabel("2017", fontsize = 12, fontweight = "bold")
    plt.show()