Hello,

I have some arrays like below:

29 5
26 4
24 4
23 3
24 3
25 5
24 3
23 3
24 3
27 4
27 5
25 2
27 4
26 1

For the above set, the most frequently appearing number for 24 is 3, the
most frequently appearing number for 27 is 4, and so forth. i.e., I want to
extract the most frequently appearing number for each number in the first
column.

This is what I want to get:

23 3
24 3
25 2
26 1
27 4
28 0
29 5

Thanks in advance.

Herbert