Explanation
This example uses the UNIQUE function together with the FILTER function.
you might see amore basic example here.
This array is returned to FILTER as theincludeargument, used to filter the data.
FILTER returns another array as a result:
This array is returned directly to the UNIQUE function as thearrayargument.
Notice of the 12 original values, only 8 survive.
The output from FILTER is dynamic.
If source data or criteria change, FILTER will return a new set of results.
COUNTIF can be used to count…