probability plot  weibull

03092018, 08:26 PM
Post: #1




probability plot  weibull
Hello,
I own my HP Prime for some day and I am fascinated about the possibilities. I have now one question. I would like to calculate failure probabilities with "Weibull probability plots" based on measured data. So my question is, is there any probability to generate a Weibull probability plot on a HP Prime? I have seen the weibull and weibull_cdf function but I don't know what the parameters (k,n,t,x,x2) are and how I could calculate these parameters with the HP Prime based on my measured data. Thank you. & Best regards, Marcus 

03102018, 07:11 AM
Post: #2




RE: probability plot  weibull
The syntax is :
weibull_cdf(Real(k),Real(lambda),[Real(theta)],Real(x1),[Real(x2)]) Cf. https://en.wikipedia.org/wiki/Weibull_distribution for parameter definitions, theta is an additional optionnal parameter, a shift in x. 

03102018, 01:07 PM
Post: #3




RE: probability plot  weibull
Hey Parisse,
thank you for you answer regarding weibull_cdf. I think this function is useful when I know the parameters of my weibull distribution. My problem is, that I have measured data and would like to build/fit a weibull function based on this data. Has anyone an idea how to realize this with my HP Prime? Best regards, Marcus 

03102018, 11:44 PM
(This post was last modified: 03102018 11:50 PM by Marcus_W.)
Post: #4




RE: probability plot  weibull
Hey,
I think I found a solution, based on this: http://www.realstatistics.com/distribut...egression/ I am not so good in coding, but maybe there is someone how can use this: Code:
Comments are welcome. bye, Marcus 

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