search for: igmm

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2009 May 13
3
simple add error (PR#13699)
Full_Name: Gostan Thierry Version: 2.6.1 (2007-11-26) OS: Windows XP Submission from: (NULL) (193.49.190.42) I cannot explain why R seems to have problems adding two big numbers. sprintf("%f",10^4+10^19) gives "10000000000000010240.000000" instead of "10000000000000010000.000000" problems seems to arrive when i'm trying to add a big and a
2015 Jan 15
0
Request to speed up save()
...the same goes for reading: > system.time(readRDS("test-a.rds")) user system elapsed 27.616 0.275 27.948 > system.time(readRDS("test.rds")) user system elapsed 0.609 0.184 0.795 > On Jan 15, 2015, at 7:45 AM, Stewart Morris <Stewart.Morris at igmm.ed.ac.uk> wrote: > > Hi, > > I am dealing with very large datasets and it takes a long time to save a workspace image. > > The options to save compressed data are: "gzip", "bzip2" or "xz", the default being gzip. I wonder if it's possible to...
2015 Jan 15
4
Request to speed up save()
Hi, I am dealing with very large datasets and it takes a long time to save a workspace image. The options to save compressed data are: "gzip", "bzip2" or "xz", the default being gzip. I wonder if it's possible to include the pbzip2 (http://compression.ca/pbzip2/) algorithm as an option when saving. "PBZIP2 is a parallel implementation of the bzip2