I found part of what I was looking for at Matchlists/tables in power query, but I need a bit more.
Using the "Flags only" example provided at Matchlists/tables in power query, I’m comparing two lists, ListA and ListB, to check if ListB’s row content appears in ListA’s row content at all. I can’t do a one-for-one match of both rows’ contents (like with List.Intersect) because the content of a row in ListB might only be part of the content of a row in ListA.
Note that, in the query below, ListB includes “roo”, which is the first three letters in the word room. I would want to know that “roo” is in ListA’s row that has “in my room.”
The "Flags only" example provided by Matchlists/tables in power query already determines that “roo” is part of ListA’s row that has “in my room.” I built on the example to assign “yes,” instead of true when there is such a match between the ListA and ListB.
What I’d like to do is to replace “yes” with the actual value from ListB — the value “roo,” for instance. I tried to simply substitute wordB for “yes” but I got an error that wordB wasn’t recognized.
let
ListA = {"help me rhonda", "in my room", "good vibrations", "god only knows"},
ListB = {"roo", "me", "only"},
contains_word=List.Transform(ListA, (lineA)=>if List.MatchesAny(ListB, (wordB)=>Text.Contains(lineA, wordB)) = true then "yes" else "no")
in
contains_word
The current query results in this:
List
1 yes
2 yes
3 no
4 yes
I want the query results to be:
List
1 roo
2 me
3
4 only
Any idea how to make it so?
(p.s. I'm extremely new to Power Query / M)
Thanks