function [ LL ] = loglik(y,x,beta)
%UNTITLED4 Summary of this function goes here
%   Detailed explanation goes here

top=y-x*beta(1:end-1);
sigma=beta(end);
colchete=log(sigma.^2)+log(2*pi)+(top/sigma).^2;
LL=(1/2)*sum(colchete);



end