I am working in google spreadsheets and I am trying to do some counting that takes into consideration cell values across multiple cells in each row.
Here's my table:
|AUTHOR| |ARTICLE| |VERSION| |PRE-SELECTED| ANDREW GOLF STREAM 1 X ANDREW GOLF STREAM 2 X ANDREW HURRICANES 1 JOHN CAPE COD 1 X JOHN GOLF STREAM 1
(Google doc here)
Each person can submit multiple articles as well as multiple versions of the same article. Sometimes different people submit different articles that happen to be identically named (Andrew and John both submitted different articles called "Golf Stream").
Multiple versions written by the same person do not count as unique, but articles with the same title written by different people do count as unique.
So, I am looking to find a formula that
- Counts the number of unique articles that have been submitted  (without having to manually create extra columns for doing CONCATS, if possible)
It would also be great to find formulas that:
Count the number of unique articles that have been pre-selected (marked "X" in "PRE-SELECTED" column) 
Count the number of unique articles that have only 1 version 
Count the number of unique articles that have more than 1 of their versions pre-selected 1
Thank you so much!
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