[R] big data?
peter.langfelder at gmail.com
Tue Aug 5 19:25:52 CEST 2014
Have you tried read.csv.sql from package sqldf?
On Tue, Aug 5, 2014 at 10:20 AM, Spencer Graves
<spencer.graves at structuremonitoring.com> wrote:
> What tools do you like for working with tab delimited text files up to
> 1.5 GB (under Windows 7 with 8 GB RAM)?
> Standard tools for smaller data sometimes grab all the available RAM,
> after which CPU usage drops to 3% ;-)
> The "bigmemory" project won the 2010 John Chambers Award but "is not
> available (for R version 3.1.0)".
> findFn("big data", 999) downloaded 961 links in 437 packages. That
> contains tools for data PostgreSQL and other formats, but I couldn't find
> anything for large tab delimited text files.
> Absent a better idea, I plan to write a function getField to extract a
> specific field from the data, then use that to split the data into 4 smaller
> files, which I think should be small enough that I can do what I want.
> R-help at r-project.org mailing list
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
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