r - R中的聚合以按组计算总数的百分比？

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)))       

我已经尝试过这段代码。我得到了总和计数的分组，但不是百分比？

Answer 1

Customers$Customer.Value为了更好地理解，我们需要更改为%>%使用嵌套函数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示例，我们也对sum(Customer.Value*100