I'd like to count the occurrence of unique items found in one column of about 120 items. I can't find a way to do this in Numbers.app
Here is a clever solution posted in an apple discussions thread.
You basically create another column, and use the formula
=IF(COUNTIF(A$1:A1, A2)=0,1,""). This will display a one for the first occurrence of each unique item. You then simply sum the whole column and you get your count.
If it doesn't have to be updated dynamically, you might also copy the cells and run something like
pbpaste | sort | uniq | wc -l.
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protected by bmike♦ Feb 23 '16 at 17:03
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