excel - Single Cell Calculation of the Average Count of Unique Words -


i have dataset looks follows:

apple banana banana carrot pear pear pear pear pear

i'd use formula find out on average how many times item appears in list. @ moment, create table listing each item once , use countif find number of times each item appears:

apple  1 banana 2 carrot 1 pear   5

in cell, average these numbers reach figure of 2.25.

is there way simplify , calculate using (array?) formula in single cell?

thanks in advance!

you not require array formula:

=counta(a1:a9)/sumproduct(1/countif(a1:a9, a1:a9))

enter image description here

edit#1:

it turns out average of unique counts actually:

=(total count of items) / (count of uniques)

edit#2:

to cover entire column , exclude blanks, use array formula:

=counta(a:a)/sum(if(a:a<>"",1/countif(a:a,a:a ), 0))

array formulas must entered ctrl + shift + enter rather enter key.

this painfully slow calculate, recommend restricting cells in column a reasonable.


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