=1 However,it suffer from one of the same problems that the histogram method suffered from,namely the presence of artificial discontinuities,in this case at the boundaries of the cubes. We need a smoother kernel function,and a common choice is the Gaussian. 14/27p(x) = 1 N ∑ N n=1 1 h D k( x − xn h ) ▶ However, it suffer from one of the same problems that the histogram method suffered from, namely the presence of artificial discontinuities, in this case at the boundaries of the cubes. ▶ We need a smoother kernel function, and a common choice is the Gaussian. 14 / 27