PQ (PT) - Text value in an interference matrix

System	Feature		Feature	F1	F2	F3	F4
S1	F1		F1	S1,S2
S1	F2		F2		S1
S1	F3		F3			S1
S2	F1		F4				S2
S2	F4

Code:

---

// Table1
let
    Source = Excel.CurrentWorkbook(){[Name="Table1"]}[Content],
    Dup = Table.DuplicateColumn(Source, "Feature", "FeatureC"),
    Grp = Table.Group(Dup, {"Feature"}, {{"Count", each _, type table}}),
    ExtS = Table.TransformColumns(Table.AddColumn(Grp, "List", each [Count][System]), {"List", each Text.Combine(List.Transform(_, Text.From), ","), type text}),
    ExtC = Table.TransformColumns(Table.AddColumn(ExtS, "FeatureC", each List.Distinct([Count][FeatureC])), {"FeatureC", each Text.Combine(List.Transform(_, Text.From), ","), type text}),
    PT = Table.Pivot(Table.RemoveColumns(ExtC,{"Count"}), List.Distinct(Table.RemoveColumns(ExtC,{"Count"})[FeatureC]), "FeatureC", "List")
in
    PT

---

---

additional solution with Pivot Table

sys
	F1	F2	F3	F4
F1	S1, S2
F2		S1
F3			S1
F4				S2

measure
http://www.excelfox.com/forum/attach...2&d=1689210133

https://www.youtube.com/channel/UCnxwq2aGJRbjOo_MO54oaHA
https://www.youtube.com/watch?v=zHJPliWS9FQ&lc=Ugz39PGfytiMUCmTPTl4AaABAg. 91d_Pbzklsp9zfGbIr8hgW
https://www.youtube.com/watch?v=zHJPliWS9FQ&lc=UgwbcybM8fXnaIK-Y3B4AaABAg.97WIeYeaIeh9zfsJvc21iq
https://www.youtube.com/watch?v=vSjTzhoJFdk&lc=UgzTC8V4jCzDHbmfCHF4AaABAg. 9zaUSUoUUYs9zciSZa959d
https://www.youtube.com/watch?v=vSjTzhoJFdk&lc=UgzTC8V4jCzDHbmfCHF4AaABAg. 9zaUSUoUUYs9zckCo1tvPO
https://www.youtube.com/watch?v=vSjTzhoJFdk&lc=UgwMsgdKKlhr2YPpxXl4AaABAg
https://www.youtube.com/watch?v=XQAIYCT4f8Q&lc=UgwTUdEgR4bdt6crKXF4AaABAg. 9xmkXGSciKJ9xonTti2sIx
https://www.youtube.com/watch?v=XQAIYCT4f8Q&lc=UgwWw16qBFX39JCRRm54AaABAg. 9xnskBhPnmb9xoq3mGxu_b
https://www.youtube.com/watch?v=XQAIYCT4f8Q&lc=UgzgWvzV-kvC4TJ8O414AaABAg.9xnFzCj8HRM9xon1p2ImxO
https://www.youtube.com/watch?v=XQAIYCT4f8Q&lc=UgybZfNJd3l4FokX3cV4AaABAg. 9xm_ufqOILb9xooIlv5PLY
https://www.youtube.com/watch?v=XQAIYCT4f8Q&lc=UgzgWvzV-kvC4TJ8O414AaABAg.9xnFzCj8HRM9y38bzbSqaG
https://www.youtube.com/watch?v=XQAIYCT4f8Q&lc=UgyWm8nL7syjhiHtpBF4AaABAg. 9xmt8i0IsEr9y3FT9Y9FeM
https://www.eileenslounge.com/viewtopic.php?f=30&t=40533&p=314837#p314837
https://www.eileenslounge.com/viewtopic.php?f=21&t=40701&p=314836#p314836
https://www.eileenslounge.com/viewtopic.php?f=27&t=40621&p=314621#p314621
https://www.eileenslounge.com/viewtopic.php?f=27&t=40621&p=314619#p314619
https://www.eileenslounge.com/viewtopic.php?f=27&t=40621&p=314600#p314600
https://www.eileenslounge.com/viewtopic.php?f=27&t=40621&p=314599#p314599
https://www.eileenslounge.com/viewtopic.php?f=27&t=40621&p=314274#p314274
https://www.eileenslounge.com/viewtopic.php?f=27&t=40621&p=314229#p314229
https://www.eileenslounge.com/viewtopic.php?f=27&t=40621&p=314195#p314195
https://www.youtube.com/channel/UCnxwq2aGJRbjOo_MO54oaHA