Nearest-Neighbour-Search-Neural-Networks-Product-Quantization/TEXMEX/PQ Library/SumCentroidsDistances.m

function [ DistVec ] = SumCentroidsDistances( DistMat, iXQ )
%SUMCENTROIDSDISTANCES Summary of this function goes here
%   Detailed explanation goes here

Ntrain=size(iXQ,2);
mm=size(DistMat,2);

DistVec=zeros(1,Ntrain);

    for kk=1:Ntrain
        dxtmp=0;
        for rr=1:mm
            dxtmp=dxtmp+DistMat(iXQ(rr,kk),rr);
        end
        DistVec(kk)=dxtmp;
    end
end