Sum of same values in a vector (MATLAB)

Dear;

I have two vectors as follows:

V1=[3 2 3 3 2 3 2 3 3 2]

V2=[5;6;5;5;5]

I want obtain the sum of the equal values in each vector. For example in V1, I have six (3) so the sum is 18 and I have four (2) so the sum is 8.

How can I obtain this sum in MATLAB in general way

Answer 1

[Voss]

V1=[3 2 3 3 2 3 2 3 3 2];
V2=[5;6;5;5;5];

uV1 = unique(V1);
for i = 1:numel(uV1)
    disp(sum(V1(V1 == uV1(i))));
end

     8

    18

uV2 = unique(V2);
for i = 1:numel(uV2)
    disp(sum(V2(V2 == uV2(i))));
end

    20

     6