Hi Michael, Rune, I checked with R 3.0.3, using sudo aptitude install r-base=3.0.3-1precise0 r-base-core=3.0.3-1precise0 r-recommended=3.0.3-1precise0 and it seems it can be really a regression (now with 3.0.3 my problem has disappeared)
I posted some hours ago on Stack Overflow http://stackoverflow.com/questions/22912936/why-r-returns-na-when-computing-mean-on-non-null-matrix/22913923#22913923 I think that read.table forces a matrix to be non numeric, while I checked and all the matrix is only composed by floats. Having non numeric data does not allow to do operations on this. Unfortunately I cannot disclose the dataset. However if I can tell you more ask me. Thanks ~ Francesco Brundu On 7 April 2014 17:26, Michael Rutter <[email protected]> wrote: > On 04/07/2014 11:15 AM, Francesco Brundu wrote: > >> Hi all, >> I am writing to you since I think I am experiencing a regression on the >> latest beta release, R version 3.1.0 beta (2014-03-28 r65330) -- "Spring >> Dance" .. Since I need to check for it before posting, I was searching for >> a method to revert to version 3.0.2 in Ubuntu, but I was unable to find >> it. >> Could you please give me some hints? >> >> Thanks >> ~ Francesco Brundu >> >> > Francesco, > > Here are some details on installing previous versions of R in Ubuntu. > > http://stackoverflow.com/questions/17935292/install- > previous-versions-of-r-on-ubuntu > > You can also use synaptic or apt if you have the CRAN Ubuntu repositories > enabled (as detailed above). > > https://help.ubuntu.com/community/SynapticHowto#How_ > to_force_the_installation_of_a_package_version > > https://help.ubuntu.com/community/PinningHowto > > If you are having an issue with 3.1.0, please let me know. It will > officially be released on Thursday, at which point I will be pushing out > that update. If there are issues, they need to be addressed. > > Michael > > -- > Dr. Michael A. Rutter > Associate Professor of Statistics > Program Coordinator, Mathematics > Penn State Erie, The Behrend College > Station Road > Erie, PA 16563 > http://math.bd.psu.edu/faculty/rutter > > > _______________________________________________ > R-SIG-Debian mailing list > [email protected] > https://stat.ethz.ch/mailman/listinfo/r-sig-debian > [[alternative HTML version deleted]] _______________________________________________ R-SIG-Debian mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-debian

