Christian,
On 26 September 2014 at 04:41, Christian Gunning wrote:
| The Walker Alias method is now (finally) implemented, along with unit
| tests. To my knowledge, the only thing not implemented is R's sample2
| - a special version of sample.int for (!replace && is.null(prob) && n
| > 1e+07 &&
Dear all,
The Walker Alias method is now (finally) implemented, along with unit
tests. To my knowledge, the only thing not implemented is R's sample2
- a special version of sample.int for (!replace && is.null(prob) && n
> 1e+07 && size <= n/2).
I also added rmultinom, which behaves how an R API
Johnathan,
Thanks for formatting this, it looks great. I've added the case of
without replacement, and a brief discussion of Walker's alias (that
depends on the SVN version of RcppArmadillo, r4296), confirmed that it
works with a local install of jekyll, and pushed it back to your
github repo. Ca
On 29 March 2013 at 18:43, Jonathan Olmsted wrote:
| Yup. Progress was waiting on finalizing behavior of sample().
|
| Current status is visible here: https://github.com/olmjo/rcpp-gallery/blob/
| gh-pages/src/2013-03-19-using-the-Rcpp-based-sample-implementation.Rmd
Awesome :)
Will check this
Yup. Progress was waiting on finalizing behavior of sample().
Current status is visible here:
https://github.com/olmjo/rcpp-gallery/blob/gh-pages/src/2013-03-19-using-the-Rcpp-based-sample-implementation.Rmd
-Jonathan
-
J.P
Christian,
Thanks -- applied to RcppArmadillo as rev4296.
Any news on the Rcpp Gallery writeup on your nice sample() function? [Hint,
Hint]
Dirk
--
Dirk Eddelbuettel | e...@debian.org | http://dirk.eddelbuettel.com
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Rc
Dirk,
See attached for minor edits related to Walker Alias method. Based on
the timing tests from the gallery draft and discussion with Johnathan,
we decided it was a bad idea to include code that deviates from R's
behavior, and is slower than R to boot. Thus, the C++ sample now
throws an inform
Christian,
Thanks again -- this is now committed as rev4278 in the Rcpp repo.
Dirk
--
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On 12 March 2013 at 10:59, Conrad S wrote:
| > #include
| > which is not expressive enough. I think we should go for something like
boost
| > where we have to do
| > #include
| > but that would require a directory
| > (inst)/include/RcppArmadillo/RcppArmadillo/extensions
> #include
> which is not expressive enough. I think we should go for something like boost
> where we have to do
> #include
> but that would require a directory
> (inst)/include/RcppArmadillo/RcppArmadillo/extensions/sample.h
>
> which reads silly. Hm.
> Better suggestio
On 11 March 2013 at 15:55, Dirk Eddelbuettel wrote:
|
| On 11 March 2013 at 13:39, Christian Gunning wrote:
| | > I don't like add-ons/ all that much as it doesn't show (Rcpp)Armadillo.
| | > How about any one of these:
| | >
| | > inst/include/RcppArmadilloXtra/sample.h
| | > ins
On 11 March 2013 at 13:39, Christian Gunning wrote:
| Dirk (and list for reference),
|
| On Sun, Mar 10, 2013 at 6:16 PM, Dirk Eddelbuettel wrote:
| >
| > Christian, Jonathan,
| >
| > On 8 March 2013 at 20:42, Christian Gunning wrote:
| > | With some helpful prodding from Jonathan, I sat down wi
Dirk (and list for reference),
On Sun, Mar 10, 2013 at 6:16 PM, Dirk Eddelbuettel wrote:
>
> Christian, Jonathan,
>
> On 8 March 2013 at 20:42, Christian Gunning wrote:
> | With some helpful prodding from Jonathan, I sat down with the sample
> | code today. I moved sample.h to add-ons as per our
Perfect timing. Meant to email you yesterday regarding sample(), but that
fell off the hectic wagon. We should get back to this.
On 25 December 2012 at 01:39, Christian Gunning wrote:
| I'm working on writing runit tests for the previously-discussed
| sample, and I just hit my competence threshol
I'm working on writing runit tests for the previously-discussed
sample, and I just hit my competence threshold dealing with
inst/include.
As discussed, the (overloaded) sample() functions are to be called
only from user C++ code and are thus not exposed to R.
This means that the function definition
On 15 November 2012 at 04:00, Christian Gunning wrote:
| | Also, you may need to add RNGScope() if you use R's RNG.
| |
| |
| |
| | Yes, I should have mentioned that in my post. Calling RNGScope() is
left
| to
| | the user, since multiple calls to sample() can con
>
> | Also, you may need to add RNGScope() if you use R's RNG.
> |
> |
> |
> | Yes, I should have mentioned that in my post. Calling RNGScope() is
> left to
> | the user, since multiple calls to sample() can conceivably happen inside
> a
> | single RNGScope().
>
> With that, maybe best to be i
On 14 November 2012 at 21:25, Christian Gunning wrote:
|
|
| On Wed, Nov 14, 2012 at 6:14 AM, Dirk Eddelbuettel wrote:
|
|
| Thank you, got both emails! Will take a closer look -- we were busy with
| releasing Rcpp 0.10.0 which will rock :)
|
|
| Sorry, I posted to list from wrong
On Wed, Nov 14, 2012 at 6:14 AM, Dirk Eddelbuettel wrote:
>
> Thank you, got both emails! Will take a closer look -- we were busy with
> releasing Rcpp 0.10.0 which will rock :)
>
Sorry, I posted to list from wrong address; 0.10.0 looks great. I found
the copious informational links at the bot
Le 14/11/12 14:05, Christian Gunning a écrit :
Dear all,
The attached file is for inclusion in RcppArmadillo/src. It's a
templated implementation of R's sample that relies on a few Armadillo
functions. It should produce results identical to R, except when R uses
Walker's alias method (with rep
Christian,
On 14 November 2012 at 06:05, Christian Gunning wrote:
| Dear all,
|
| The attached file is for inclusion in RcppArmadillo/src. It's a templated
| implementation of R's sample that relies on a few Armadillo functions. It
| should produce results identical to R, except when R uses Wa
Dear all,
The attached file is for inclusion in RcppArmadillo/src. It's a templated
implementation of R's sample that relies on a few Armadillo functions. It
should produce results identical to R, except when R uses Walker's alias
method (with replacement, more than 200 nonzero probabilities giv
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