repeat a formula each 16 times and do median of them

dylan nico

New Member
Joined
Aug 27, 2022
Messages
1
Office Version
  1. 365
Platform
  1. MacOS
I have a following structure:
predictions, truth
1,1
1,0
1,1
1,2
1,0
... 16 times
0,0
0,0
0,1
0,0
... 16 times
.
.
.

I need to compute this formula for each 16 times and then do the median between all of them:
the formula is: equal_values/16, where equal_values are the values of the predictions which are equal to the values of truth.
Then, I need to do the median of all of them.
In the example above, the first 16 pairs returns 2/16. The second 16 pairs returns 3/16. Then the median of these two values.

Below an image that give. the idea. Thanks to all for the responses.


Schermata 2022-08-27 alle 12.09.45.png
 

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Pito Salas, working for Lotus, popularized what would become to be pivot tables. It was released as Lotus Improv in 1989.
I'm not sure I follow completely, but have a look at this to see if it does what you want. I've introduced helper column to identify the groups of 16 (called "Series"), and then tabulated intermediate results in case you want to confirm the answers.
MrExcel_20220826.xlsx
ABCDEFG
1PredictionTruthSeries
2021Median6
3101
4111SeriesCount Pred=Truth
5001144/16
6221288/16
7011
8011
9121
10211
11211
12111
13101
14211
15021
16211
17021
18112
19112
20222
21202
22102
23102
24012
25212
26022
27202
28222
29002
30222
31002
32222
33122
Sheet6
Cell Formulas
RangeFormula
C2:C33C2=INT(SEQUENCE(COUNT(A2:A33),,0)/16)+1
F2F2=MEDIAN(F5:F6)
E5:E6E5=UNIQUE(C2#)
F5:F6F5=SUMPRODUCT((C$2#=E5)*($A$2:$A$33=$B$2:$B$33))
G5:G6G5=F5&"/16"
Dynamic array formulas.
 
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