About Kernel Density Estimator

Hi, I used kde for estimate a continuous cdf from discrete distribution.(<http://www.mathworks.com/matlabcentral/fileexchange/14034-kernel-density-estimator/content/kde.m)>.

the function is: function [bandwidth,density,xmesh,cdf]=kde(data,n,MIN,MAX)

Does anyone use this before? I think it only assign n to 2^N but I want n to be some number like 150.

Does anyone know some other tools that can estimate a continuous cdf from finite data outcomes?

Thanks.