John Hendy <jw.he...@gmail.com> writes:
> On Wed, Oct 31, 2012 at 11:41 AM, <span
> dir="ltr"><mailto:cbe...@tajo.ucsd.edu></span> wrote:
> John Hendy <mailto:jw.he...@gmail.com> writes:
>
>> I edited the subject to be more concise/clear.I let orgmode chug away
>> on reading in some ~10-30mb csv files for nearly 30min.
>
> [rest deleted]
>
> You need an ECM.I did my best to provide one, other than the file, which I
> offered to provide if others requested that I upload it somewhere. Since you
> have done so, so have I:
> - https://docs.google.com/open?id=0BzQupOSnvw08WHdabHh5VVczRGM
> Let me know if that doesn't work. I put it on Google docs and sometimes
> have issues with the sharing settings...
Not an ECM in my book, but ...
On my 4 year old MacBook:
,----
|
| #+PROPERTY: session *R*
|
| #+name: bigcsv
| #+begin_src R
| bigcsv <- Sys.glob("~/Downloads/*.csv")
| #+end_src
|
| #+RESULTS: bigcsv
| : /Users/cberry/Downloads/test-file.csv
|
| #+name: readbig
| #+begin_src R :results output
| system.time(
| tmp <- read.csv(bigcsv)
| )
|
| #+end_src
|
| #+RESULTS: readbig
| : user system elapsed
| : 5.679 0.306 6.002
|
`----
About the same as running from ESS.
FYI,
> dim(tmp)
[1] 964805 9
Chuck
[ rest deleted ]
