>
> Thanks for the clarification Justin. What about the S4 classes
> and methods? The design resembles CLOS, and currently this
> is interpreted R code. Have you addressed performance issues
> associated with this? What relative impact does this have compared
> with other optimizations like vectori
On Fri, Mar 9, 2012 at 8:39 AM, Justin Talbot wrote:
>
> > Another possibility is to implement R/S on top of an optimized virtual
> > machine like the JVM, LLVM, etc.
> >
>
>
>
Somebody is pursuing that already: https://code.google.com/p/renjin/
Antonio
The RHadoop project, https://github.com/R
On Fri, Mar 9, 2012 at 11:39 AM, Justin Talbot wrote:
>>
>> Isn't R much like Lisp under the covers? Afterall, it evolved from Scheme.
>> Hasn't there been a great deal of work done on optimizing Lisp over the
>> last 30 years? This suggests that instead of dropping the R/S semantics
>> and moving
>
> Isn't R much like Lisp under the covers? Afterall, it evolved from Scheme.
> Hasn't there been a great deal of work done on optimizing Lisp over the
> last 30 years? This suggests that instead of dropping the R/S semantics
> and moving to another language like Julia, the proposals of Ross Ihaka
>
> On 8 March 2012 at 11:06, Justin Talbot wrote:
> | I've been working on an R performance academic project for the last
> | couple years which has involved writing an interpreter for R from
> | scratch and a JIT for R vector operations.
>
> Cool. I think John mention that once or twice and I pr
Justin,
On 8 March 2012 at 11:06, Justin Talbot wrote:
| I've been working on an R performance academic project for the last
| couple years which has involved writing an interpreter for R from
| scratch and a JIT for R vector operations.
Cool. I think John mention that once or twice and I promp
On Thu, Mar 8, 2012 at 2:06 PM, Justin Talbot wrote:
> I've been working on an R performance academic project for the last
> couple years which has involved writing an interpreter for R from
> scratch and a JIT for R vector operations.
>
> With the recent comments on Julia, I thought I'd share som
