[R] vsize and nsize

[Timothy H. Keitt]

I've written just such an interface.  It ties proxy objects (subclassed from
data.frame) to postgres tables (it should be easy to write drivers for any
rdbms).  The library needs a bit of cleaning up and documenting before I release
the package.  I did run into some significant problems trying to subclass the
data.frame type, but I think they can be fixed (the current version knows nothing
about R internals).

Tim

"Z. Todd Taylor" wrote:

> R's poor handling of large datasets is half the reason I have
> not moved more of my work from S(plus) to R (the other half
> being the absence of trellis).  I love its lexical closures, but
> they're not worth the memory penalty if you have huge datasets.
>
> Maybe someday R will get something akin to Perl's 'tie'
> mechanism that would allow practical analysis of huge
> datasets.  Maybe that's not possible.
>
> --Todd
> --
> Z. Todd Taylor
> Pacific Northwest National Laboratory
> Todd.Taylor at pnl.gov
> Why does cleave mean both separate and adhere?
> -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
> r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
> Send "info", "help", or "[un]subscribe"
> (in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
> _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._

--
Timothy H. Keitt
National Center for Ecological Analysis and Synthesis
735 State Street, Suite 300, Santa Barbara, CA 93101
Phone: 805-892-2519, FAX: 805-892-2510
http://www.nceas.ucsb.edu/~keitt/



-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-
r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html
Send "info", "help", or "[un]subscribe"
(in the "body", not the subject !)  To: r-help-request at stat.math.ethz.ch
_._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._