All,
I am looking for a way to calculate the specific numbered month in a model's product life starting with 1. EX. If model ABC's first month is 2/2013, I would like for that to be listed as 1, 3/2013 would be 2, 2/2014 would be 13 and so on. My data contains roughly 100,000 lines and 200 models with everything being spread out. Attached is a basic version of what I am looking to accomplish.
If you have any questions, please let me know. Thank you in advance.
Can you type expected results manually? It it not clear, for me at least.
Quang PT
I have manually entered the result that I am looking for. I need to identify the earliest month that a specific model number is listed and "start" the product life with 1. Each month after that would be assigned 2,3,4,5....14,15..however many months the product life lasts as new data is added.
I hope this can be solved through the UDF, is it fine for you.
Like my answer, then click * below
Try this array formula in D2:
=DATEDIF(MIN(IF($A$2:A2=A2,$C$2:C2)),C2,"m")+1
...confirmed by pressing CTRL+SHIFT+ENTER to activate the array, not just ENTER. You will know the array is active when you see curly braces { } appear around your formula. If you do not CTRL+SHIFT+ENTER you will get an error or a clearly incorrect answer. Press F2 on that cell and try again.
That did work. Thank you for the help Bebo, I appreciate it.
There are currently 1 users browsing this thread. (0 members and 1 guests)
Posting Permissions
LinkBack URL
About LinkBacks
Register To Reply
Bookmarks