Second most frequent number in a data set in Excel?

M

Mr Grim

I am trying to find the second most frequently occuring value in a given data
set. I know MODE will give most frequent value but I need second, third,
fourth, and fifth most frequent values.
 
B

Biff

Hmmm....

Is this the unsolvable problem?

Having tried the examples in the links, Bernie's doesn't handle duplicates,
Peo's will only work for the 2nd mode, RD's doesn't handle duplicates, Ron's
doesn't handle duplicates, my attempt also didn't handle duplicates.
Harlan's does handle the duplicates but it needs a trap, otherwise, after
the last unique value is returned the formula starts "randomly" repeating
until it's been copied to more rows than the indexed range. (at which point
it errors as it should)

Harlan's formula with a trap:

=IF(ROWS($1:1)<=SUMPRODUCT((rng<>"")/COUNTIF(rng,rng&"")),INDEX(rng,MATCH(LARGE(FREQUENCY(rng,rng)+(1-ROW(INDIRECT("1:"&(ROWS(rng)+1)))/(ROWS(rng)+1)),ROW(A1)),FREQUENCY(rng,rng)+(1-ROW(INDIRECT("1:"&(ROWS(rng)+1)))/(ROWS(rng)+1)),0)),"")

See the link regarding some strange behavior of
SUMPRODUCT((rng<>"")/COUNTIF(rng,rng&"")):

http://tinyurl.com/jaen9

Biff
 
B

Biff

I found this in my stash!

A1:A20 = numbers (there is at least 1 mode)

Formula in B1:

=MODE(A1:A20)

Formula entered in B2 as an array using the key combination of
CTRL,SHIFT,ENTER (not just ENTER):

=MODE(IF(COUNTIF(B$1:B1,A$1:A$20)=0,A$1:A$20+{0,0}))

Copy down until you get #N/A errors.

Biff
 

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