calcdatadist.m

模糊C均值聚类的MATLAB实现

function vDist = calcDataDist(Xdat);
%   function vDist = calcDataDist(Xdat);
%
%   Compute the matrix of distances between samples of a data set
%
%   Xdat = data set of size (M,N)
%   vDist = vector of distances of size (N(N-1)/2,1)
%
%   Write by : DD
%       date : 2001/06/26

[M,N] = size(Xdat);
id = 1;
for r=1:N
    for c=r+1:N
        vect = Xdat(:,r)-Xdat(:,c);
        vDist(id) = vect'*vect;
        id = id+1;
    end
end
return %% end of function calcDataDist.m