Hi all, I am searching for a R procedure to calculate a 95% prediction interval (i.e. the interval in which following observations of the variable will occur, not a confidence interval) on a variable that is the natural logarithm of a ratio that is always equal ore superior to 1, so the natural-log-transformed variable is left truncated from 0 and I think that it is expected to be normal; anyone can help? ThankYou, Fabio
Dott. Fabio Colombo Coordinatore tecnico Università degli Studi di Milano, Dipartimento di Scienze e Tecnologie Veterinarie per la Sicurezza Alimentare, Laboratorio di Identificazione di Specie (LIS) Via A. Grasselli, 7, 20131 Milano, Italy Phone: +390250318504 Fax: +390250318501 E.mail fabio.colo...@unimi.it ______________________________________________ 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.
