python DataFrame列运算

Question

python DataFrame列运算

Answer 1

import pandas as pd#新建一个dataFrame,dfd={'消费总金额':[100,150,200],'消费次数':[1,2,2],}df=pd.DataFrame(d)#新增一列‘平均值’表示两者相除df['平均值'] =df.apply(lambda x: x[0] / x[1], axis=1)df