Dear Thierry,
So, does it mean that I have to install "nlme" instead of "lme4"? or first "nlme" and after "lme4"??? I also need"lmerTest" and when I installed it, I got the following message: install.packages("lmerTest") Installing package into 'C:/Users/Hp/Documents/R/win-library/3.3' (as 'lib' is unspecified) probando la URL 'http://cran.espol.edu.ec/bin/windows/contrib/3.3/lmerTest_2.0-33.zip' Content type 'application/zip' length 1149547 bytes (1.1 MB) downloaded 1.1 MB package 'lmerTest' successfully unpacked and MD5 sums checked The downloaded binary packages are in C:\Users\Hp\AppData\Local\Temp\Rtmp6D0iIu\downloaded_packages > library(lmerTest) Loading required package: Matrix Loading required package: lme4 Attaching package: 'lme4' The following object is masked from 'package:nlme': lmList Attaching package: 'lmerTest' The following object is masked from 'package:lme4': lmer THANK YOU FOR YOUR REPLY, Xavier ________________________________ From: Thierry Onkelinx <thierry.onkel...@inbo.be> Sent: Wednesday, January 25, 2017 12:42 PM To: Rui Barradas Cc: CHIRIBOGA Xavier; r-help@r-project.org Subject: Re: [R] HELP lme4 & lmerTest INSTALLATION Dear Rui, nlme is a recommended package, lme4 is (currently) not. You need to install it. Best regards, ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Research Institute for Nature and Forest team Biometrie & Kwaliteitszorg / team Biometrics & Quality Assurance Kliniekstraat 25 1070 Anderlecht Belgium To call in the statistician after the experiment is done may be no more than asking him to perform a post-mortem examination: he may be able to say what the experiment died of. ~ Sir Ronald Aylmer Fisher The plural of anecdote is not data. ~ Roger Brinner The combination of some data and an aching desire for an answer does not ensure that a reasonable answer can be extracted from a given body of data. ~ John Tukey 2017-01-25 11:45 GMT+01:00 Rui Barradas <ruipbarra...@sapo.pt<mailto:ruipbarra...@sapo.pt>>: You don't need to install lme4, it comes with base R. [[alternative HTML version deleted]] ______________________________________________ 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.