find the number of elements in matrix

I have a table which contains 6 columns. In the 6th column, I have 3 types data: A , Ae , M I want to find: how many A, how many Ae and how many M I have in this column.

[James Tursa]

Please provide a small sample of your table so we can see exactly what is in that 6th column.

Answer 1

[Guillaume]

Should work regardless of the type of data in the 6th column:

[id, group] = findgroups(yourtable.nameof6column)
count = accumarray(id, 1);

%for pretty display
result = table(group, count)

Answer 2

[Razvan Carbunescu]

If using R2018a can use groupsummary with the first syntax:

GT = groupsummary(T,6)