matplotlib画图代码案例

import matplotlib.pyplot as plt
import pandas as pd
import seaborn as sns
file_name = 'zhihu_5646book.csv'
df = pd.read_csv(file_name, encoding='utf-8')
df = df.sort_index(by = "频率",ascending = False)  
print(df.head())
print(df[1:10])
# 画图
color = sns.color_palette('Paired', 16)
plt.rcParams['font.sans-serif'] = ['Arial Unicode MS']
plt.barh(range(10,0,-1),df["频率"][0:10],color = color)
plt.yticks(range(10,0,-1),df["书籍名称"][0:10],fontsize=12)
# 设置字体大小，参数与Text一样
plt.xlabel("推荐次数",fontsize=14)
plt.ylabel("书籍名称",fontsize=14)
plt.title("知乎5646回答-推荐书籍前十名")
# 设置边距
plt.subplots_adjust(left=0.2, right=0.9, top=0.9, bottom=0.1)
plt.show()
# 推荐书单