Remove partial matches from list in sheets - arrays

I'm trying to compare two arrays and remove any matches(Partial). This seems like it should be simple but I can't wrap my head around it.
The sheet is found here:
https://docs.google.com/spreadsheets/d/1_jPJOST-8DbpTwVcoFGXFzdpo-1bXSMnwJcgEMnNk3U/edit?usp=sharing

Try:
=FILTER(A2:A5,NOT(REGEXMATCH(A2:A5,JOIN("|",B2:B3))))

I used the premise on that but used textjoin to make sure I could add more rows. Thanks!
=FILTER(A2:A,NOT(REGEXMATCH(A2:A,textJOIN("|",TRUE, B2:B))))

Related

Is there a way to duplicate every value in an excel array?

I am trying to duplicate all values in an array in my sheet. I have {1,6,14,15} and I want to output {1,1,6,6,14,14,15,15}. I would like to do this exclusively with functions. I have seen the VSTACK function, which seems very useful, however joining the insider thing seems like a hassle and would not allow this spreadsheet to be usable across other devices easily.
I have tried the CONCAT function, however this simply returns 161415161415 which is not helpful to me. The various alternatives to VSTACK all remove duplicates, which is exactly not what I am looking for. Besides all of those alternatives are lengthy and hard for me to wrap my head around.
You could use EXPAND() here:
=LET(arr,{1,6,14,15},TOROW(IFERROR(EXPAND(arr,2),arr),,1))
Note that 2 will define how often you want to duplicate the input.
If you have LET and SEQUENCE:
=LET(ζ,{1,6,14,15},INDEX(ζ,SEQUENCE(,2*COUNTA(ζ),,0.5)))

Index or HLookup working "alone" but not working inside ArrayFormula

I'm trying to put the following formulas inside an ArrayFormula but the result is wrong (keep providing the first row result):
Working in each single cell
=INDEX($D$2:$AKA;match($A2:A;$A$2:A;false);MATCH(DATE(YEAR(TODAY());MONTH(TODAY());1);$D$1:$AKA$1;false))
Showing the same result in all cells
=arrayformula(IF(LEN($A$2:A);INDEX($D$2:$AKA;match($A2:A;$A$2:A;false);MATCH(DATE(YEAR(TODAY());MONTH(TODAY());1);$D$1:$AKA$1;false));))
Gsheet example
Thanks in advance,
Nick
use:
=INDEX(IFERROR(HLOOKUP(EOMONTH(TODAY(); -1)+1; D1:1000; IF(A2:A="";;ROW(A2:A)); 0)))
You may also try QUERY() approach.
=QUERY(INDEX(D2:5000;;MATCH(EOMONTH(TODAY();-1)+1;D1:1));"limit " & COUNTA(A2:A))

How to compile a list of other lists by checkbox?

I'm trying to write a cell formula which can essentially create a single playlist of songs.
Currently the songs are grouped by decade, but I'd like to be able to see a single list of everything that has been ticked.
I tried an array formula, but it only returned the first ticked song. Plus not sure how to make the array formula include the adjacent lists.
I tried a FILTER function, it works for one list of songs, but I don't know how to get it to append the other lists on the end.
Could I use a QUERY function? Not sure how though.
Many thanks!
try:
={"LIST"; FILTER({C:C; F:F}; {B:B; E:E}=TRUE)}
awesome question! You were super close in your filter example, one more filter in your array would've done it :)
Example Image:
Example Formula:
={"LIST"; FILTER(C:C, B:B=TRUE); FILTER(F:F, E:E=TRUE)}

Is there a way to make this query formula work? it was working before but I had to add more sheets and then it broke

Formula that combines all the sheets in my project and removes any empty cells
yes, change this:
;},
to this:
},

Add element to next unused index - C

I'm sure others have already asked this, but is it possible to insert an element into the next available index of an array without using a for-loop to find that index first? Almost like a list.add() function but for arrays in C.
no, you will have to loop through the array.
If it's really list functionality you want you could implement a simple linked list instead of using arrays, for example like this: http://www.cprogramming.com/tutorial/c/lesson15.html

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