Question

我有这个问题

AttributeError: 'DataFrame' object has no attribute 'set_value'

AttributeError                            
Traceback (most recent call last)

<ipython-input-176-25558b9cd48f> in <module>

      3     visitor_team = row["Visitor Team"]

      4     row["HomeLastWin"] = won_last[home_team]

----> 5     dataset.set_value(index, "HomeLastWin", won_last[home_team])

我的代码：

from collections import defaultdict

won_last=defaultdict(int)
dataset["HomeLastWin"]=0
dataset["VisitorLastWin"]=0

for index, row in dataset.iterrows():
    home_team = row["Home Team"]
    visitor_team = row["Visitor Team"]

    row["HomeLastWin"] = won_last[home_team]

    dataset.set_value(index, "HomeLastWin", won_last[home_team])
    dataset.set_value(index, "VisitorLastWin", won_last[visitor_team])

    won_last[home_team]=int(row["HomeWin"])
    won_last[visitor_team]=1-int(row["HomeWin"])

Answer 1

扩大我的评论：set_value就是deprecated，因此您需要使用其他方法。他们建议使用at：

dataset.at[index, "HomeLastWin"] = won_last[home_team]

或者您也可以使用loc：

dataset.loc[index, "HomeLastWin"] = won_last[home_team]

对象没有属性

1 个答案: