Jago matlab need help

[JagoVB]

gan nubi mau nanya ttg coding ini artinya gimana si???



function [affinity] = CalculateAffinity(data)



% set the parameters

sigma = 1;



for i=1:size(data,1)

for j=1:size(data,1)

dist = sqrt((data(i,1) - data(j,1))^2 + (data(i,2) - data(j,2))^2);

affinity(i,j) = exp(-dist/(2*sigma^2));

end

end