我试图计算一个新的变量，基于对多个已有变量的求和。 我可以在R中这样做:

R代码:

data_2017_18 <- data_2017_18 %>% 
mutate(
income = 
  income3a +
  income3b +
  income3c +
  income3d +
  income3e +
  income3f +
  income3g +
  income3h +
  income3i +
  income3j +
  income3k +
  income3l +
  income3m +
  income3n +
  income3o +
  income3p +
  income3q

）

我试着用python这样做:

data_2017_18.satisfaction = (data_2017_18.income3a +
                       data_2017_18.income3b +
                       data_2017_18.income3c +
                       data_2017_18.income3d +
                       data_2017_18.income3e +
                       data_2017_18.income3f +
                       data_2017_18.income3g +
                       data_2017_18.income3h +
                       data_2017_18.income3i +
                       data_2017_18.income3j +
                       data_2017_18.income3k +
                       data_2017_18.income3l +
                       data_2017_18.income3m +
                       data_2017_18.income3n +
                       data_2017_18.income3o +
                       data_2017_18.income3p +
                       data_2017_18.income3q)

然而，当我运行频率计数时，我得到了垃圾:

data_2017_18.income.value_counts()

00100010001000000 1 100000000000000100 1

感谢您的指点！

干杯。