How to get the position of nth occurrence of a value in column
In previous post, we talked that how to get the position of the last occurrence of a value. And this post explains that how to get the position of the 2th, 3th or nth occurrence of a specific value in a column in excel. The below will guide you how to find the position of the nth occurrence of a value from a list in a column.
Get the position (index) of nth Occurrence of a value
If you want to locate the second, third or nth occurrence of a specified value, you can use a combination of the INDEX function, the IF function, ROW function and SMALL function to create a new excel array formula.
For example, you want to get the position of the 2th occurrence of a string value as “excel” in a range C3:C7, you can try to use the following array formula:
=SMALL(IF(C3:C7="excel", ROW(C3:C7)ROW(INDEX(C3:C7,1,1))+1),2)
Note: when you enter the above array formula, you must hold the Control and Shift keys down, then press Enter. Then the formula bar should add curly braces surrounding the array formula.
Let’s see how the above formula works:
=ROW(C3:C7)ROW(INDEX(C3:C7,1,1))+1
I have talked the above formula in the previous post, it returns the relative position of all rows in the range C3:C7. The result returned by the above formula is an array.
=IF(C3:C7=”excel”, ROW(C3:C7)ROW(INDEX(C3:C7,1,1))+1)
The IF function will check if each value in range C3:C7 is equal to “excel”, if TRUE, returns its relative position, otherwise, returns FALSE. As this formula is an array formula, so it must be returned an array result.
=SMALL(IF(C3:C7=”excel”, ROW(C3:C7)ROW(INDEX(C3:C7,1,1))+1),2)
The SMALL function will check the array result returned by the IF function and returns the second smallest value in the array. So it should be the position of the second occurrence of text string “excel” in range C3:C7. It is 5.
You can also use the below array formula to achieve the same results:
=SMALL(IF(C3:C7="excel", ROW(C3:C7)MIN(ROW(C3:C7))+1),2)
So if you want to get the nth occurrence of a value in a range, you just need to update the second argument of the small function to your actual requirement in the above array formula.
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