On Wednesday 28 June 2006 15:45, Patrick Connolly wrote:
> On Wed, 28-Jun-2006 at 04:43PM -0700, Alberto Murta wrote:
> |> I have a pentium 4 pc with 256 MB of RAM, so I made a text file, tab
> |>
> |> separated, with column names and 15000 x 483 integers:
> |> > system("ls -l teste.txt")
> |>
> |>
On Wed, 28-Jun-2006 at 04:43PM -0700, Alberto Murta wrote:
|> I have a pentium 4 pc with 256 MB of RAM, so I made a text file, tab
|> separated, with column names and 15000 x 483 integers:
|>
|> > system("ls -l teste.txt")
|> -rw-r--r-- 1 amurta amurta 16998702 Jun 28 16:08 teste.txt
|>
|> t
I have a pentium 4 pc with 256 MB of RAM, so I made a text file, tab
separated, with column names and 15000 x 483 integers:
> system("ls -l teste.txt")
-rw-r--r-- 1 amurta amurta 16998702 Jun 28 16:08 teste.txt
the time it took to import it was around 15 secs:
> system.time(teste <- read.del
From: Peter Dalgaard
>
> <[EMAIL PROTECTED]> writes:
>
> > Dear all,
> >
> > I read.table a 17MB tabulator separated table with 483
> > variables(mostly numeric) and 15000 observations into R.
> This takes a
> > few seconds with R 2.3.1 on windows 2000, but it takes
> several minutes
> > on
