Convert structure to a vector?

Dear all, I need a help with accessing and converting a structure

if true

   G = {'A', 'B'};
   A = 1;
   B = 2;
  end

how can I convert it to a vector C = [1,2]

Thank you,

[KSSV]

Where is structure above?

[Yaser Khojah]

I have the data in this format which is

G = {'A', 'B'}

and just want to change the format. Maybe I'm wrong to define the type of this data.

Answer 1

[Stephen23]

>> G = {'A','B'};
>> V = [1,2]; % or [A,B]
>> [~,idx] = ismember(G,{'A','B'});
>> V(idx)
ans =
   1   2

Or using char vectors (simpler):

>> G = 'AB';
>> V = [1,2];
>> [~,idx] = ismember(G,'AB');
>> V(idx)
ans =
   1   2

[Yaser Khojah]

Thanks for sharing this answer. It is really useful but I want to work out without showing the order of A and B. For example: G has certain value which A and B but the order different than the values in V. I will share my question as:

if
G ={'DOFF'    'On'    'On'    'DOFF'    'DOFF'    'SOFF'    'SOFF'    'On' DOFF};
DOFF =1;
On   =2;
DoFF =3;

end

Now I want to convert them all to something like this

V = [1 3 3 1 1 2 2 3 3 1];

[Stephen23]

>> G = {'DOFF','On','On','DOFF','DOFF','SOFF','SOFF','On','DOFF'};
>> V = [1,2,3]; % same order as C:
>> C = {'DOFF','SOFF','On'};
>> [~,idx] = ismember(G,C);
>> V(idx)
ans =

     1   3   3   1   1   2   2   3   1

[Yaser Khojah]

Thank you so much. It worked :)