Returning the distinct/unique values in a column in Excel and make the table expand

Question

I have a column that looks something like this:

[4,5,6,4,4,4,4,5,6,7]

I want to return the distinct values in a table column like this:

[4,5,6,7]

The problem is if i add an 8 to the first column:

[4,5,6,4,4,4,4,5,6,8]

Then I needed it to return: [4,5,6,7,8]

I need the table to expand. In other words, it needs to update by itself.

I tried using Data --> Advanced. But is does not expand the table and needs to be updated manually.

Any tips?

Thanks for the help!

Solution

You can use the following, in B1 write =A1, in B2 write:

=IFERROR(INDEX($A$1:$A$1000, MATCH(0, COUNTIF($B$1:B1, $A$1:$A$1000), 0)), "")

Array Formula press Ctrl+Shift+Enter at the same time and drag it down
You can drag it more than needed in that case whenever you add Data it will show
Also for $A$1:$A$1000 you can write instead of 1000 more than the maximum rows number

Comments

[Scott Craner]

Pivot tables???

[Jordan]

I tried that, but I'm not able to sort it my unique number. Im only able to calculate sum, average etc

[Stephen Rauch]

Maybe with a VBA Script?