how to find the count of unique values of a column in a array?

how to find the count of unique values of a column in a array?

eg. am having values like 5,10,15,20,25,30,35,40,45,50,55,60 which are repeated in one column of a array.

i need count of each elements in that column.

Answer 1

[Adam]

doc histcounts

should give you the number of each of the elements in your array, so long as you parameterise it correctly if you have discrete values.

doc accumarray

should also work for this, probably more simply, although its syntax has often confused me in the past

[Suresh R]

how can i use this in for loop?