function M=comparisonMatrixOfPerspectives(pers)

len=length(pers)

for i=1:len
        list = getchaincode(pers{i});
        elist{i} = evolution(list,1,0.34);
    end
end

M=zeros(len);
for i=1:len-1
    for j=i+1:len
        M(i,j)=matchArcs3x3(elist{i},elist{j});
    end
end

M=M+M';
return
