如何解决python中是否有办法为多个组使用上一行的值?
我有以下数据框(比利时):
Count_Flights my_network partner_country year_month Perct_Use X
202 Austria Belgium 202008 nan nan
127 Denmark Belgium 202008 nan nan
428 Austria France 202008 nan nan
700 Denmark France 202008 nan nan
nan Austria Belgium 202009 0.98 nan
nan Denmark Belgium 202009 0.98 nan
nan Austria France 202009 0.98 nan
nan Denmark France 202009 0.98 nan
我希望实现的是Count_Flights = Count_Flights [0] * Perct_Use [1],即;对于202009
Austria Belgium = 202 * 0.98
Denmark Belgium = 127*0.98
我尝试了以下代码:
Belgium["X"]=np.nan
for part in partner:
country_confirmed_df = Belgium[(Belgium['partner_country'] == country)]
states_in_country = country_confirmed_df['my_network'].unique()
for i in range(1,len(Belgium)):
print(network,part)
print(Belgium.loc[i-1,'Count_Flights']*Belgium.loc[i,'Perct_Use'])
但是最终会收到“ KeyError”
我也尝试过使用if和if进行换班。
版权声明:本文内容由互联网用户自发贡献,该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务,不拥有所有权,不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容, 请发送邮件至 dio@foxmail.com 举报,一经查实,本站将立刻删除。