On Tue, Sep 20, 2011 at 3:07 PM, Dirk Eddelbuettel <edd@debian.org> wrote:

> Yes, the digest() function from our digest package can create hash stamps
> for
> any R object ... as we use R's own serialize() which is universal.
>
> | to-be-cached object to disc and are able to load the object at a later
> time
> | again.
> |
> | Perfect for caching results of long computations ...
>
> There are a couple of packages on CRAN that do that, but I haven't compared
> them.  I think the CRAN Task View on Reproducible Research may have leads.
>
> Just a thought:  Maybe you want to compare and review these, along with
> your
> own approach, and make that a nice succinct two or three pager for the R
> Journal?
>
>
Thanks for the pointer to the task view, which lists, among others, the
"cacher" package. The functionality is slightly different, with some
advantages, but also some disadvantages in comparison to a more manual cache
handling.

It would be definitely great to write two or three pages (about 800-1000
words, I assume) for the R-Journal, I'll contact you off-list with questions
about this subject.


Ulrich

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