Forum Discussion
Number Duplicate Values (in Chronological Order) Based on DateTime Column
My first post!
I am attempting to build a formula in Excel which will count the number of duplicates in the [Load ID] column while respecting the chronological order in the [Tender Request Creation Date/Time] column.
In the attached image, columns A through C represent my current results using a CountIF formula. Columns E through G represent my desired outcome. Pay special attention to the difference in order between columns B and F. This is an example of a single Load ID. There are almost 8500 unique values and 1900 duplicates in my attached file. In some instances, the Load ID can be duplicated up to 7 times.
Let me know if you require any additional information. Thanks!
3 Replies
As variant, to have filtered result as
formulas are
in E2: =SORTBY( Tbl_TenderData[[Load ID]:[Tender Request Creation Date/Time]], Tbl_TenderData[Load ID],1, Tbl_TenderData[Tender Request Creation Date/Time],1 ) in G2: =ROW(E2#)-ROW($E$1)-XMATCH(INDEX($E$2#,0,1),INDEX($E$2#,0,1))+1I would like to suggest two different formula, one is finding the duplicates & another shows the frequency of the duplicates.
=IF(COUNTIF(A:A,A2)>1,"Duplicate",COUNTIF(A:A,A2))
=COUNTIF($A$2:$A$10236,A2)
- Adjust cell references in the formula as needed.
FlowEZ All you need to do is a custom sort. First on Load (ascending) then on Date/Time (ascending).
(Screenshot taken in Excel for Mac, but it's similar in the Windows version.)
RE-attaching your file with the sorting in it.
