The Weibull distribution is a probability distribution with applications in survival analysis, reliability engineering, failure analysis, industrial engineering, extreme value theory, weather forecasting, forestry, and more.
Questions tagged [weibull-distribution]
354 questions
4
votes
1 answer
Intersection point of two Weibull PDFs
I am wondering if there is an algebraic solution (i.e. an equation) to find the intersection point(s) of two Weibull probability densities that have different scale and shape parameters. While I have tried myself and searched for a solution, I have…
Mari153
- 880
1
vote
1 answer
Estimation of Weibull parameter In R language
I want to fit Y using M alone
I want to also fit Y using M+P
M<-c(12.7,13.7,15.6,14.5,17.4)
N<-c(0.27,0.29,0.27,0.28,0.25)
P<-c(-0.55,-0.47,-0.49,-0.48,-0.44)
I fitted the following
df1<- data.frame(X1=M, Y=N, X2=P)
Fit<-nls(Y~pweibull(M, shape=…
ESHEMA
- 11
1
vote
0 answers
Weibull distribution: Is it possible to solve for the shape and scale from the mean?
I'm modeling product lifetimes. If I know what I want the average lifetime of a product in my model to be, is it possible to fit a Weibull distribution to only that data point?
Caitlin
- 11
1
vote
0 answers
Rationale for normalization of Weibull distribution?
I am reading a paper which normalizes a Weibull distribution (equation 2):
$$
y_{ij} = \frac{
1 - \exp \left[ - \left( \frac{t_j}{\beta} \right)^\alpha \right]
}{
1 - \exp \left[ - \left( \frac{1}{\beta} \right)^\alpha \right]
}
$$
where…
user2153235
- 315
1
vote
1 answer
Which statistical software can do Weibull analysis and draw these particular figures?
Some R packages, Weibull++, and a couple of other programs can perform Weibull analysis (survival analysis by fitting a Weibull distribution). But I need the one that can both do Weibull regression and draw the attached figures (not similar figures,…
Vic
- 1,353
- 6
- 19
- 30
0
votes
0 answers
Problem of the pdf plot for Weibull distribution
I'm using MATLAB to plot the Weibull distribution function. But the y-axis, obviously, is not probability. Also, the plot on Wikipedia (here)has same y-axis as mine, so my question is: is there something wrong here? I'm pretty sure that my code is…
FantasticAI
- 477