R中的聚合计算按组计算的总百分比？

Question

DDD <- summarise(
  group_by(Customers, Last_region, Last_state, Last_city),     
  Count = length(Last_city),
  Total = sum(Customer.Value, na.rm = TRUE),
  Percent = sum(Customer.Value * 100 / sum(Customer.Value, na.rm = TRUE)))       

我已经尝试过这个代码。我得到的总数为＆amp;数不是百分比吗？

Answer 1

我们需要更改为Customers$Customer.Value并且为了更好地理解，请使用%>%而不是使用嵌套函数。

Customers %>%    
   group_by(Last_region, Last_state, Last_city) %>%     
   summarise(Count = length(Last_city),
             Total = sum(Customer.Value, na.rm = TRUE),
             Percent = sum(Customer.Value * 100 / 
                          sum(Customers$Customer.Value, na.rm = TRUE)))       

由于OP没有显示任何可重现的例子，我们也对sum(Customer.Value*100

中的结束括号有疑问