Selecting categorical variable range to plot on bar graph

I don't understand why the categorical data is shown in its entirety on the graph despite only a portion of it being selected.

Am I indexing it wrongly?

C = categorical({'A'; 'B'; 'C'; 'D'; 'E'; 'F'});
N = [5 4 2 3 4 8];
bar(C(3:end), N(3:end))

[Siddharth Bhutiya]

When you create a cateogorical array, you specify the list of categories. That list now becomes a property of the categorical object. Taking a subset of the array using indexing would not update that list. If you want to add/remove a category from your array then you would have to use something like addcats/removecats.

>> C = categorical({'A'; 'B'; 'C'; 'D'; 'E'; 'F'});
>> categories(C)

ans =

  6×1 cell array

    {'A'}
    {'B'}
    {'C'}
    {'D'}
    {'E'}
    {'F'}

>> C1 = C(3:end)

C1 = 

  4×1 categorical array

     C 
     D 
     E 
     F 

>> categories(C1)

ans =

  6×1 cell array

    {'A'}
    {'B'}
    {'C'}
    {'D'}
    {'E'}
    {'F'}

[Nex]

Thank you very much for the clear explanation and suggestion of a solution.

Answer 1

[VBBV]

C = categorical({'A'; 'B'; 'C'; 'D'; 'E'; 'F'});
N = [5 4 2 3 4 8];
bar(C(3:end), N(3:end))
xticks(C(3:end))
xticklabels(C(3:end))

Use Xticks & Xticklabels