As the title says, how can I end up with cells that don't match in value, the difference/complement (set theory)?
I would prefer it with only FUNCTIONS and no script.
{1,2,3,4}\{1,3} = {2, 4}
or with letters
{a,b,c,d}\{a,c} = {b, d}
or with with space.
{xyz zyx, abc cba, qwe ewq}\{xyz zyx, qwe ewq} = {abc cba}
Having two arrays:
Array1 Array2
1 1
2 b
b
4
c
you can get resulting array:
Result
2
4
c
Try this formula:
=FILTER(A2:A6,ROUND(MMULT(ArrayFormula(--(A2:A6<>TRANSPOSE(B2:B4))),TRANSPOSE(SPLIT(REPT(1/ROWS(B2:B4)&"/",Rows(B2:B4)),"/"))),5)=1)
May be too complex for this task, could somebody edit it? Please, look at sample sheet
Edit
I've found more simple way to do this, using Regular Expressions:
=FILTER(A2:A6,REGEXMATCH(ARRAYFORMULA("'"&A2:A6),JOIN("|",B2:B3))=false)