[R] Format a dataset for use with R with chunking

William Dunlap wdunlap at tibco.com
Mon Dec 28 23:56:46 CET 2015

What do you hope to do with this data while it is in R?
E.g., do you want to plot it, fit a model to it, to select a few
rows or columns from it, sort it, summarize lots of small subsets
of it, or something else?

Bill Dunlap
TIBCO Software
wdunlap tibco.com

On Mon, Dec 28, 2015 at 1:39 PM, Mark Finkelstein <finkel.mark at gmail.com>

> The problem is common, I have 100GB of data, but only 8GB of RAM. I was
> thinking of transforming the 100GB of data, which right now is in a nonCSV,
> fixed row format, to something that R could load quickly and easily in
> chunks - sort of like pages perhaps.
> I might be able to do this with some SQL server, but I'm unsure how well
> this works out with the constant conversion, and I feel there might be a
> better approach, since I am particularly interested in speed, as I will
> have to go through several iterations with this data, and speed counts.
> I was hoping someone much more experienced than I might have a good answer
> since there's a lot out there.
> Any advice would be very much appreciated.
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