function [index] = getMostRepElement(trainMat)
% Given a database of elements, finds the most representative element
% within the database
% trainMat: m*n matrix (m elements each having dimension n)
% Output:
% 1. index: index of the most representative element

numElements = size(trainMat, 1);
simMatrix = zeros(numElements, numElements);
%numFeatures = size(trainMat,2) -1;
for i=1:numElements
    for j=1:numElements
        simMatrix(i,j) = getSimCounting(trainMat(i,:), trainMat(j,:));
    end
end
[index] = mostRepVector(simMatrix);