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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