[R-SIG-Finance] [R-sig-finance] Preprocessing RData file (data.table and ff, bigmemory)

Carlos J. Gil Bellosta cgb at datanalytics.com
Fri May 22 17:17:56 CEST 2009

Incidentally, my package is already available at


You can install it by


There may be some issues as it depends on Python (and it does not work
with Python 3.0). If you work on Windows, you will have to make Python
available to R setting the path properly.

I am working in fixing these nuances. And I do welcome willing beta-testers!

Best regards,

Carlos J. Gil Bellosta

2009/5/22 Jose Iparraguirre D'Elia <Jose at erini.ac.uk>:
> You could also have a look at filehash, with which I've been playing around for a while.
> Furthermore, I recently found a package still in Beta version, colbycol, written by Carlos J. Gil Bellosta (http://www.datanalytics.com) which seems to do what's on the tin: reading and managing large datasets well beyond the in-process memory limits...
> José

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