数据框分组的条形图 [英] Bar graph from dataframe groupby

问题描述

import pandas as pd
import numpy as np
import matplotlib.pyplot as plt

df = pd.read_csv("arrests.csv")
df = df.replace(np.nan,0)
df = df.groupby(['home_team'])['arrests'].mean()

我正在尝试为数据框创建条形图.在home_team下是一堆团队名称.在逮捕中，每个日期都有许多逮捕.我基本上是按团队对数据进行分组，并得出该团队的平均逮捕人数.我正在尝试为此创建条形图，但由于一列没有标题，因此不确定如何进行操作.

I'm trying to create a bar graph for dataframe. Under home_team are a bunch of team names. Under arrests are a number of arrests at each date. I've basically grouped the data by teams with the average arrests for that team. I'm trying to create a bar graph for this but am not sure how to proceed since one column doesn't have a header.

数据

推荐答案

从链接中复制数据并运行df = pd.read_clipboard()

copying data from your link and running df = pd.read_clipboard()

然后使用您的代码

df = df.replace(np.nan,0)
df = df.groupby(['home_team'])['arrests'].mean()

df.plot.bar()

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