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 Formula for week serial number within month		  New Topic  Reply to Topic
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AKazak

Russia
1205 Posts
Posted - 01/22/2022 :  03:48:11 AM  Show Profile  Edit Topic  Reply with Quote  View user's IP address  Delete Topic
OriginPro 2022 (64-bit) SR1 9.9.0.225
Windows 7 Pro SP1 x64

Greetings!

How do I get the week serial number within a month from a date column?

Thank you.

---
Andrey

cpyang

USA
1406 Posts
Posted - 01/22/2022 :  3:47:27 PM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
I googled for Excel formula,

https://thesmartmethod.com/an-excel-formula-to-get-the-week-of-month/

and can you try this in Origin? Assuming col(A) is date.



WeekNum(A)-WeekNum(date(year(A),month(A),1))+1



CP
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AKazak

Russia
1205 Posts
Posted - 01/23/2022 :  01:08:19 AM  Show Profile  Edit Reply  Reply with Quote  View user's IP address  Delete Reply
quote:
Originally posted by cpyang

I googled for Excel formula,

https://thesmartmethod.com/an-excel-formula-to-get-the-week-of-month/

and can you try this in Origin? Assuming col(A) is date.


WeekNum(A)-WeekNum(date(year(A),month(A),1))+1



CP



Good approach.
I tuned the formula so the first week of a month has number 1:
WeekNum(A)-WeekNum(date(year(A),month(A),1))


---
Andrey
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