Dear R-experts, With weibulltools we can only compute the CI for the median.
Best, Le dimanche 13 février 2022, 12:11:09 UTC+1, Eric Berger <ericjber...@gmail.com> a écrit : I did a Google search on "R confidence interval for Weibull distribution parameters" and there were several packages that appear to provide that information. Have you tried any of them? On Sun, Feb 13, 2022 at 12:44 PM varin sacha via R-help <r-help@r-project.org> wrote: > > Dear R-experts, > > Here below my R code. I am trying to get the exact 95% confidence intervals > around the meanlog for lognormal, around the mean for gamma and around the > mean for weibull distributions. For lognormal and gamma everything is working > but for weibull, I get error messages. After having used the ??eweibull > function, I am not sure I can get the 95% CIs around the mean. Is there a way > to get the exact 95% CIs around the mean for the weibull distribution ? > > ########################## > #Exact 95% CIs for the mean lognormal distribution > library(EnvStats) > > x=rlnorm(100000,0,1) > elnorm(x,method="mvue",ci=TRUE,ci.type="two-sided",ci.method="exact",conf.level=0.95) > > #Exact 95% CIs for the mean gamma distribution > library(EnvStats) > > x=rgamma(n=100000,shape=2,rate=5) > egamma(x,method="mle",ci=TRUE,ci.type="two-sided",conf.level=0.95) > > > #Exact 95% CIs for the mean weibull distribution > library(EnvStats) > > x=rweibull(100000,2,2) > eweibull(x,method="mle",ci=TRUE,ci.type="two-sided",conf.level=0.95) > > ########################## > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
