Hi all; I'm trying to model a response variable (Y) from one (and eventually more...) independant left-censored variable (X*) In other words, X* is a random variable with values 0 -> inf. Thus, let c=0 X*= x if x>= c X*= c if x< c Does anyone knows a function or package in [R] enabling to model Y from a censored predictor X*? Thanks for your help! ?tienne ?tienne Boucher Stagiaire Post-Doctoral Institut national de la recherche scientifique Centre Eau-Terre-Environnement 490, de la Couronne, Qu?bec (Qu?bec) G1K 9A9 Tel: 418-654-3823 etienne.boucher at ete.inrs.ca
Model (Y) from left-censored independant variable (s)
3 messages · Boucher Etienne, Vaz Joao (QPT TO EPA)
Hi,
I'm running R version 2.8.1 on Windows and I'm having quite a lot of trouble just to install package RODBC.
When I run command install.packages("RODBC"), the following error message appears:
Warning: unable to access index for repository http://cran.pt.r-project.org/bin/windows/contrib/2.8
Then it stops and doesn't install anything. I've also tried downloading from several mirrors with no success. Is this normal? Am I doing anything wrong?
Thanks,
Joao Vaz
Hi, Sorry, just one correction: the error message that appears is: Warning: unable to access index for repository http://ftp5.gwdg.de/pub/misc/cran/bin/windows/contrib/2.8 Cumprimentos, Joao Vaz Product Engineer QPT Product Engineering Qimonda Portugal S.A. -----Original Message----- From: Vaz Joao (QPT TO EPA) Sent: Tuesday, February 03, 2009 6:23 PM To: 'r-help at r-project.org' Subject: R: unable to install packages Hi, I'm running R version 2.8.1 on Windows and I'm having quite a lot of trouble just to install package RODBC. When I run command install.packages("RODBC"), the following error message appears: Warning: unable to access index for repository http://cran.pt.r-project.org/bin/windows/contrib/2.8 Then it stops and doesn't install anything. I've also tried downloading from several mirrors with no success. Is this normal? Am I doing anything wrong? Thanks, Joao Vaz