Count paired items in listed combinations - EBOOK VBA EXCEL

EBOOK VBA EXCEL

EVBA.info ( Ebook VBA Excel ) Welcome EVBA.info - Nothing Is Unable ... About Excel Tricks, Learning VBA Programming, Dedicated Software, Free Courses, Living Skills ...

Wednesday, January 15, 2020

Count paired items in listed combinations

Count paired items in listed combinations

Excel formula: Count paired items in listed combinations
Generic formula 
=COUNTIFS(range,"*"&$item1&"*",range,"*"&item2&"*")
Explanation 
To build a summary table with a count of paired items that appear in a list of existing combinations, you can use a helper column and a formula based on the COUNTIFS function. In the example shown the formula in cell H5 is:
=IF($G5=H$4,"-",COUNTIFS(helper,"*"&$G5&"*",helper,"*"&H$4&"*"))
where "helper" is the named range E5:E24.
Note: this formula assumes items don't repeat in a given combination (i.e. AAB, EFE are not valid combinations).

How this formula works

We want to count how often items in columns B, C, and D appear together. For example, how often A appears with C, B appears with F, G appears with D, and so on. This would seem like a perfect use of COUNTIFS, but if we try to add criteria looking for 2 items across 3 columns, it isn't going to work.
A simple workaround is to join all items together in a single cell, then use COUNTIFS with a wildcard to count items. We do that with a helper column (E) that joins items in columns B, C, and D using the CONCAT function like this:
=CONCAT(B5:D5)
In older versions of Excel, you can use a formula like this:
=B5&C5&D5
Because repeated items are not allowed in a combination, the first part of the formula excludes matching items. If the two items are the same, the formula returns a hyphen or dash as text:
=IF($G5=H$4,"-"
If items are different, a COUNTIFS function is run:
COUNTIFS(helper,"*"&$G5&"*",helper,"*"&H$4&"*")
COUNTIFS is configured to count "pairs" of items. Only when the item in column G and the corresponding item from row 4 appear together in a cell is the pair counted. A wildcard (*) is concatenated to both sides of the item to ensure a match will be counted no matter where it appears in the cell.
#evba #etipfree #kingexcel
📤You download App EVBA.info installed directly on the latest phone here : https://www.evba.info/p/app-evbainfo-setting-for-your-phone.html?m=1

No comments:

Post a Comment