Forum Discussion
Help on a UNIQUE formula
UNIQUE works down the array to generate a distinct set of rows. To do the reverse and work from left to right across an array (here just a single row) you need to add a further parameter
= UNIQUE(year,1)
where 'year' is a defined name that refers to A1:K1.
I am not the best person to ask because this time I deliberately erased older versions of Excel and decided that I had no interest in maintaining compatibility with those older versions. However, I remember tricks such as using MATCH to identify the first occurrence of the value (in your case, a date) and return the relative row number of such matches. SMALL will then filter the row numbers which are ultimately used to lookup the values/dates.
= INDEX(
dates,
SMALL(
IF(
MATCH(dates,dates,0)=k,
k),
k)
)I can't help but feel that
= UNIQUE(dates)is clearer in its intent!