MATLAB: How to get rid of repeating values inside an array

arrayMATLABrepeating values

I have a matrix

      a=[1 2 3 3 4 4 5];

I want to get rid of values 3 and 4 as they are repeating so that the output becomes

      b=[1 2 5]

 b = a(sum(bsxfun(@eq,a,a'))==1)

name = {'A', 'A', 'A', 'B', 'B', 'B', 'C', 'C', 'C'}.';

type = {'AA', 'BB', 'CC', 'BB', 'BB', 'BB', 'AA', 'CC', 'CC'}.';

t = table(name, type);

n_type = rowfun(@(v) numel(unique(v)), t, 'GroupingVariables', 'name', 'InputVariables', 'type')

>> W = [1,2,3,4,5];
>> W2 = repmat(W,1,3)
W2 =
     1     2     3     4     5     1     2     3     4     5     1     2     3     4     5