r merge by id and date between two dates
问题 I have dataset1 which has two columns ID and Application_SubmittedDate . The Application_SubmittedDate column is a date/time column. ID Application_SubmittedDate 6972 2001-05-30 16:57:00 6972 2003-03-08 12:30:00 6972 2006-03-22 17:43:00 6972 2003-08-07 20:20:00 6972 2006-07-28 18:28:00 6972 2001-05-25 17:14:00 6972 2003-09-30 00:48:00 6972 2002-06-04 18:11:00 6972 2006-05-06 17:30:00 6972 2003-02-24 16:02:00 6972 2006-09-16 16:29:00 6972 2003-02-12 22:47:00 6972 2002-08-15 23:30:00 6972 2002