Dear R helpers,
I created a somewhat big database (+206,700 rows) in MySQL and have
exported into a csv file, but I can't open the whole thing in R. I am
using:
> base<-read.csv("/path/to/file.csv", header=F, sep="," nrows=206720)
R doesn't complain but it only opens 128,328 observations (the number of
columns corresponds to the original database):
> dim(base)
[1] 128328 134
In case it's useful, my system's profile:
[~]$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 30
file size (blocks, -f) unlimited
pending signals (-i) 31547
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 100
stack size (kbytes, -s) 10240
cpu time (seconds, -t) unlimited
max user processes (-u) 1024
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
I also tried
[~]$ R --max-vsize=500M
I haven't found any obvious way to expand the number of rows. Is this a
system wide issue, or is it R? Where should I look for a solution? Any
pointers greatly appreciated.
I'm using Fedora 12, 64bit, x86_64 on a 4Gb Ram laptop.
Thank you,
Alex
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