Sun, 10 Jun 2018

RcppZiggurat 0.1.5

ziggurats

A maintenance release 0.1.5 of RcppZiggurat is now on the CRAN network for R.

The RcppZiggurat package updates the code for the Ziggurat generator which provides very fast draws from a Normal distribution. The package provides a simple C++ wrapper class for the generator improving on the very basic macros, and permits comparison among several existing Ziggurat implementations. This can be seen in the figure where Ziggurat from this package dominates accessing the implementations from the GSL, QuantLib and Gretl—all of which are still way faster than the default Normal generator in R (which is of course of higher code complexity).

Per a request from CRAN, we changed the vignette to accomodate pandoc 2.* just as we did with the most recent pinp release two days ago. No other changes were made. Other changes that have been pending are a minor rewrite of DOIs in DESCRIPTION, a corrected state setter thanks to a PR by Ralf Stubner, and a tweak for function registration to have user_norm_rand() visible.

The NEWS file entry below lists all changes.

Changes in version 0.1.5 (2018-06-10)

  • Description rewritten using doi for references.

  • Re-setting the Ziggurat generator seed now correctly re-sets state (Ralf Stubner in #7 fixing #3)

  • Dynamic registration reverts to manual mode so that user_norm_rand() is visible as well (#7).

  • The vignette was updated to accomodate pandoc 2* [CRAN request].

Courtesy of CRANberries, there is also a diffstat report for the most recent release. More information is on the RcppZiggurat page.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

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RcppGSL 0.3.6

A maintenance update 0.3.6 of RcppGSL is now on CRAN. The RcppGSL package provides an interface from R to the GNU GSL using the Rcpp package.

Per a request from CRAN, we changed the vignette to accomodate pandoc 2.* just as we did with the most recent pinp release two days ago. No other changes were made. The (this time really boring) NEWS file entry follows:

Changes in version 0.3.6 (2018-06-10)

  • The vignette was updated to accomodate pandoc 2* [CRAN request].

Courtesy of CRANberries, a summary of changes to the most recent release is available.

More information is on the RcppGSL page. Questions, comments etc should go to the issue tickets at the GitHub repo.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

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RcppClassic 0.9.10

A maintenance release RcppClassic 0.9.9 is now at CRAN. This package provides a maintained version of the otherwise deprecated first Rcpp API; no new projects should use it.

Per a request from CRAN, we changed the vignette to accomodate pandoc 2.* just as we did with the most recent pinp release two days ago. No other changes were made.

CRANberries also reports the changes relative to the previous release.

Questions, comments etc should go to the rcpp-devel mailing list off the R-Forge page.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

/code/rcpp | permanent link