Hi Michael, ok, solved. Thanks for your support. Bye ~ Francesco Brundu
On 7 April 2014 17:57, Michael Rutter <[email protected]> wrote: > > > On 04/07/2014 11:36 AM, Francesco Brundu wrote: > >> 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 >> > > The first entry in NEWS for R 3.1.0 is this: > > * type.convert() (and hence by default read.table()) returns a > character vector or factor when representing a numeric input as a > double would lose accuracy. Similarly for complex inputs. > > If a file contains numeric data with unrepresentable numbers of > decimal places that are intended to be read as numeric, specify > colClasses in read.table() to be "numeric". > > The solution is given and the change will be seen in the release version > of R 3.1.0 I will push later this week. I have a feeling this will effect > a number of users, but the solution is an easy fix. > > > 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 > [[alternative HTML version deleted]] _______________________________________________ R-SIG-Debian mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-debian
