On 12-12-14 8:00 AM, ONKELINX, Thierry wrote:> Dear all,
>
> I'm having troubles migrating a large matrix from one system to
another.
>
> #system 1: Ubuntu 12.04, 64-bit, running R 2.15.2
> # do some simulations
> # save the simulations
>> save(Output, file = "Simulations.Rdata")
> #Output is a numeric matrix with 6 columns and about 2M rows.
>
> Use ftp to transfer the Simulations.Rdata file to system 2
>
> #system2: Windows XP, 32-bit running R 2.15.2
> #in a clean R session
>> load("Simulations.Rdata")
> Error: bad restore file magic number (file may be corrupted) -- no data
loaded
> In addition: Warning message:
> file 'Simulations.Rdata' has magic number ''
> Use of save versions prior to 2 is deprecated
>
> The load() functions works correct on system 1
>
> Any ideas how to solve this problem?
I suspect you really did get a corrupted transfer. Try computing an md5
checksum before and after the transfer, using tools::md5sum.
Duncan Murdoch
>
> Best regards,
>
> Thierry
>
>
> 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
> + 32 2 525 02 51
> + 32 54 43 61 85
> Thierry.Onkelinx at inbo.be
> www.inbo.be
>
> 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
>
> * * * * * * * * * * * * * D I S C L A I M E R * * * * * * * * * * * * *
> Dit bericht en eventuele bijlagen geven enkel de visie van de schrijver
weer en binden het INBO onder geen enkel beding, zolang dit bericht niet
bevestigd is door een geldig ondertekend document.
> The views expressed in this message and any annex are purely those of the
writer and may not be regarded as stating an official position of INBO, as long
as the message is not confirmed by a duly signed document.
>
> ______________________________________________
> R-help at 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.
>