On Thu, 30 Aug 2012, Salma Wafi wrote:
I am trying to get some estimator based on lognormal distribution when we have left,interval, and right censored data.
Take a look at the NADA package. For left-censored data you can use cenmle with dist = 'lognormal'. Survival analyses work well for right-censored data as well as interval-censored data. Dennis Helsel's second edition, "Statistics for Censored Environmental Data Unsing Minitab and R" is the basis for NADA and a valuable resource. Rich ______________________________________________ R-help@r-project.org mailing list 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.
