r语言 - 使用 dplyr 筛选行

Question

>我有一个数据帧

soDf <- structure(list(State = c("Exception", "Exception", "Exception",  "Exception", "Approval", "Processing"), User = c("1","2", "1", "3", "1", "4"), Voucher.Number = c(10304685L, 10304685L, 10304685L,10304685L, 10304685L, 10304685L),  Queue.Exit.Date = c("8/24/2016 14:59", "8/26/2016 13:25", "8/26/2016 15:56", "8/26/2016 16:13", "8/26/2016 16:25", "8/26/2016 17:34")),.Names = c("State", "User", "Voucher.Number","Queue.Exit.Date"), row.names = 114:119, class = "data.frame")

我有一个规则列表，我想按以下条件过滤行：

规则之一是

(Voucher.Number == lag(Voucher.Number)) & (State == 'Exception' & lag(State) == 'Exception' )

如果当前凭证编号和滞后凭证编号相等，并且两者都具有异常标记，则计数将该行标记为 True 。

当我将此规则与其他几个规则应用时，它将第 4 行作为True返回，当它应该返回为False

       State User Voucher.Number Queue.Exit.Date toFilt
1  Exception    1       10304685 8/24/2016 14:59     NA
2  Exception    2       10304685 8/26/2016 13:25   TRUE
3  Exception    1       10304685 8/26/2016 15:56   TRUE
4  Exception    3       10304685 8/26/2016 16:13   TRUE
5   Approval    1       10304685 8/26/2016 16:25  FALSE
6 Processing    4       10304685 8/26/2016 17:34  FALSE

这是我用于所有过滤规则的代码

soDf <- soDf %>%
  arrange(Voucher.Number, Queue.Exit.Date)%>%
  mutate(toFilt =  ((User == lag(User)& Voucher.Number ==lag(Voucher.Number)))|
           ((Voucher.Number != lag(Voucher.Number)) & State == "Exception") |
           ((Voucher.Number == lag(Voucher.Number)) & (State == 'Exception' & lag(State) == 'Exception' ))|
           ((Voucher.Number == lag(Voucher.Number)) & (User == lag(User))))  

Answer 1

第 5 行不符合 mutate 列中的条件语句。第 5 行的状态是"批准"而不是"异常"，并且用户 ID 与滞后用户 ID 不匹配。

因此，它返回 FALSE，因为 4 个语句中没有一个是 TRUE。它似乎不是编码错误，只是条件语句需要更改以满足您的需求。希望这有帮助！