Question

我正在处理电子健康记录数据，并希望创建一个名为＆＃34; episode＆＃34;加入彼此在7天内发生的抗生素药物。下面是一个模拟数据集和我想要的输出。我在R编程。

df2=data.frame(
  id = c(01,01,01,01,01,02,02,03,04),
  date = c("2015-01-01 11:00", 
           "2015-01-06 13:29", 
           "2015-01-10 12:46", 
           "2015-01-25 14:45",
           "2015-02-15 13:30",
           "2015-01-01 10:00",
           "2015-05-05 15:20",
           "2015-01-01 15:19",
           "2015-08-01 13:15"),
  abx = c("AMPICILLIN",
          "ERYTHROMYCIN",
          "NEOMYCIN",
          "AMPICILLIN",
          "VANCOMYCIN",
          "VANCOMYCIN",
          "NEOMYCIN",
          "PENICILLIN",
          "ERYTHROMYCIN"));
df2

输出所需

id            date          abx     episode
1 2015-01-01 11:00   AMPICILLIN     1
1 2015-01-06 13:29 ERYTHROMYCIN     1
1 2015-01-10 12:46     NEOMYCIN     1
1 2015-01-25 14:45   AMPICILLIN     2
1 2015-02-15 13:30   VANCOMYCIN     3
2 2015-01-01 10:00   VANCOMYCIN     1
2 2015-05-05 15:20     NEOMYCIN     1
3 2015-01-01 15:19   PENICILLIN     1
4 2015-08-01 13:15 ERYTHROMYCIN     1

R中彼此7天范围内日期的指标变量

0 个答案: