Weibull and lognormal distribution

Hello everyone!

I am new on matlab and trying to figure my data. I have set of data for stress of material and I want to show them in Weibull and lognormal reliability plot.

Can anyone guide me how to plot reliability by use weibull two parameters and log normal distribution

Answer 1

[David Hill]

pd=fitdist(stress,'Weibull');
PD=fitdist(stress,'Lognormal');
x=1:100;%whatever you want for your value range based on your data
W=pdf(pd,x);
L=pdf(PD,x);
plot(x,W,x,L);