Cumulative distribution function of vector -doesn't work correctly

Hi,

I need to use cdf function. It works on simple vector like x=[-3:0.1:3], but not for my vector and data.

oh2L1=[0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.026	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.140	0.331	0.227	0.183	0.244	0.323	0.305	0.201	0.253	0.201	0.227	0.262	0.201	0.201	0.166	0.174	0.201	0.209	0.140	0.227	0.244	0.227	0.192	0.105	0.096	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017];
oh2L2=[0.009	0.017	0.017	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.009	0.017	0.017	0.026	0.009	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.026	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.026	0.017	0.017	0.009	0.017	0.026	0.017	0.009	0.009	0.009	0.017	0.017	0.026	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.009	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.026	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.026	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.009	0.009	0.017	0.009	0.017	0.026	0.026	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.026	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.026	0.026	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.017	0.017	0.026	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.009	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.026	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.009	0.017	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.017	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.000	0.017	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.000	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.140	0.314	0.227	0.201	0.262	0.331	0.314	0.209	0.262	0.209	0.236	0.288	0.209	0.218	0.166	0.201	0.201	0.218	0.157	0.236	0.244	0.227	0.201	0.131	0.105	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.017];
oh2L3=[0.017	0.017	0.017	0.017	0.026	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.026	0.017	0.017	0.026	0.026	0.017	0.017	0.009	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.009	0.017	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.026	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.009	0.017	0.017	0.017	0.017	0.017	0.017	0.017	0.009	0.017	0.017	0.009	0.017	0.017	0.017	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.009	0.017	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.122	0.262	0.209	0.157	0.209	0.262	0.253	0.166	0.209	0.174	0.192	0.218	0.166	0.174	0.140	0.157	0.174	0.183	0.122	0.192	0.201	0.192	0.166	0.113	0.087	0.009	0.009	0.009	0.009	0.017	0.017	0.017	0.017	0.017	0.009	0.009	0.009	0.017	0.009	0.009	0.009	0.009	0.009	0.009	0.009	0.017	0.017	0.026];


oh2=[oh2L1, oh2L2, oh2L3];

oh2sorted=sort(oh2,'ascend');
y2= cdf(pd,oh2sorted)

plot(oh2sorted,y2)

The problem is that the chart shows that function doesn't work correctly. For example - i have only two data (from 3024) in vector = 0, but for oh2=0 chart display y(x=0)=0.

Where is the problem?

[Star Strider]

What distribution (and parameters) does ‘pd’ represent?

[Aleksandra Pawlak]

pd = makedist('Normal')

I accidentally didn't copy this to question.

Answer 1

[Star Strider]

The code is working correctly. All the values in ‘oh2’ are extremely small and close together, and there are only 29 unique values in it:

Uoh2sorted = unique(oh2sorted)

producing a vector going from 0 to 0.331.

EDIT — (13 Dec 2020 at 17:20)

To appreciate it in a larger context, run this:

y2= cdf(pd,oh2sorted);
plot(oh2sorted,y2)

yv = -3:0.1:3;
ycdf = cdf(pd, yv);

figure
plot(yv, ycdf)
hold on 
plot(oh2sorted,y2, '+r')
hold off
grid

Your data are plotted as red ‘+’ signs.

[Aleksandra Pawlak]

What do unique values change?

This is cumulative distribution, so the last data should always be = 100%. Shouldn't I get the chart looking like this?

[Aleksandra Pawlak]

Ok, I understand that I have small values. But why I don't get the main shape of chart looking like in the picture in previous comment? I thought that it is the result of 'cumulative distribuation' definition.

[Star Strider]

If you run my code example that I posted in the EDIT, you get this result:

Your data are the red ‘+’ in the plot.

[Aleksandra Pawlak]

Yes, I understand. Does it means that this function is basing on the unique values, instead of all data?

[Star Strider]

It is using all the data, however there are only 29 unique values, so it overplots many of them.

[Aleksandra Pawlak]

Is there any solution to increase number of unique values?

[Aleksandra Pawlak]

Maybe I show what I want to get:

I have more data that oh2: oh3, oh4, oh5 itd.

Max value is 1.6.

I get something like this:

[Aleksandra Pawlak]

Where I need to get something like this:

So i need more unique values to get chart where values on yaxsis are from 0 to 1?

[Aleksandra Pawlak]

I mean that for example when for oh2 I have 2x 0 from 3084 data- so the probability of get 0 is around 0,06%. In my chart it is around 50%. So this is why i think it works bad.

I have 0 in unique values.

[Star Strider]

You defined ‘pd’ as a normal distribution with a mean of 0 and a standard deviation of 1, the default parameters in the way you defined it:

pd = makedist('Normal')

if you want to define it with respect to your data, try this:

pd = makedist('Normal', 'mu',mean(oh2), 'sigma',std(oh2));

y2= cdf(pd,oh2sorted);
plot(oh2sorted,y2)

yv = linspace(-0.15, 0.15);
ycdf = cdf(pd, yv);

figure
plot(yv, ycdf)
hold on 
plot(oh2sorted,y2, '+r')
hold off
grid

I have no idea what you are doing. Make appropriate changes to get the result you want.

Also, I am not certain how to interpret ‘... the probability of get 0 is around 0,06%’ since I am now confused as to whether you want a cumulative distribution function or a probability density function.

The pdf is given as:

pd = makedist('Normal', 'mu',mean(oh2), 'sigma',std(oh2));

y2= pdf(pd,oh2sorted);
plot(oh2sorted,y2)

yv = linspace(-0.15, 0.15);
ypdf = pdf(pd, yv);

figure
plot(yv, ypdf)
hold on 
plot(oh2sorted,y2, '+r')
hold off
grid

I will let you sort that.