[Rcpp-commits] r2801 - in pkg/Rcpp: . inst/announce

Sun Dec 19 00:03:50 CET 2010

Author: edd
Date: 2010-12-19 00:03:50 +0100 (Sun, 19 Dec 2010)
New Revision: 2801

Added:
   pkg/Rcpp/inst/announce/ANNOUNCE-0.9.0.txt
Modified:
   pkg/Rcpp/ChangeLog
Log:
started an announcement message for 0.9.0


Modified: pkg/Rcpp/ChangeLog
===================================================================

--- pkg/Rcpp/ChangeLog	2010-12-18 18:57:13 UTC (rev 2800)
+++ pkg/Rcpp/ChangeLog	2010-12-18 23:03:50 UTC (rev 2801)
@@ -1,3 +1,10 @@
+2010-12-18  Dirk Eddelbuettel  <edd at debian.org>
+
+	* inst/announce/ANNOUNCE-0.9.0.txt: Started announcement post
+
+	* inst/unitTests/runit.Date.R: Added new unit tests for date and
+	datetime from string
+
 2010-12-17  Dirk Eddelbuettel  <edd at debian.org>
 
 	* inst/include/Rcpp/Datetime.h: correct default format to use %OS for
@@ -115,7 +122,7 @@
 
 2010-11-27  Dirk Eddelbuettel  <edd at debian.org>
 
-	* DESCRIPTION: Release 0.8.9
+ 	* DESCRIPTION: Release 0.8.9
 
         * debian/*: Similarly updated for new release to Debian
 

Added: pkg/Rcpp/inst/announce/ANNOUNCE-0.9.0.txt
===================================================================
--- pkg/Rcpp/inst/announce/ANNOUNCE-0.9.0.txt	                        (rev 0)
+++ pkg/Rcpp/inst/announce/ANNOUNCE-0.9.0.txt	2010-12-18 23:03:50 UTC (rev 2801)
@@ -0,0 +1,102 @@
+
+===== Summary =====
+
+Version 0.9.0 of the Rcpp package is now on CRAN and its mirrors. 
+This release marks another step in the development of the package.
+A few key points are highlighted below.  More details are in the NEWS and
+ChangeLog files.
+
+
+===== Overview =====
+
+Rcpp is an R package and associated C++ library that facilitates integration
+of C++ code in R packages.
+
+The package features a set of C++ classes (Rcpp::IntegerVector,
+Rcpp::Function, Rcpp::Environment, ...) that makes it easier to manipulate R
+objects of matching types (integer vectors, functions, environments, etc
+...).
+
+Rcpp takes advantage of C++ language features such as the explicit
+constructor/destructor lifecycle of objects to manage garbage collection
+automatically and transparently. We believe this is a major improvement over
+use of PROTECT/UNPROTECT. When an Rcpp object is created, it protects the
+underlying SEXP so that the garbage collector does not attempt to reclaim the
+memory. This protection is withdrawn when the object goes out of
+scope. Moreover, users generally do not need to manage memory directly (via
+calls to new / delete or malloc / free) as this is done by the Rcpp classes
+or the corresponding STL containers.
+
+A few key points about Rcpp:
+
+ - a rich API covering all core R data types including vectors, matrices,
+   functions, environments, ... (with the exeception of factors
+   which are less useful in C++)
+
+ - seamless (bi-directional) data interchange between R and C++
+
+ - possibility of inline use permitting definition, compilation, linking and
+   loading of C++ functions directly from R
+
+ - extensive documentation now covering nine vignettes
+
+ - exception handling and error propagation back to R
+
+ - extensive test suite using RUnit covering over 700 tests
+
+ - comprehensive documentation in nine vignettes
+
+ - extension packages RcppArmadillo and RcppGSL provide easy-to-use
+   integration with the Armadillo (linear algebra) and GNU GSL librasries
+
+ - increasing adoption among R users and package developers with now
+   twenty packages from CRAN or BioConductor depending on Rcpp
+
+Two key features were added during the 0.8.* cycles and are described below.
+
+
+===== Rcpp sugar =====
+
+Rcpp now provides syntactic sugar: vectorised expressions at the C++ level
+which are motivated by the corresponding R expressions.  This covers
+operators (binary arithmetic, binary logical, unary), functions (producing
+single logical results, mathematical functions and d/p/q/r statistical
+functions). Examples comprises anything from ifelse() to pmin()/pmax() or 
+
+The Rcpp-sugar vignette describes sugar in more detail.
+
+
+===== Rcpp modules =====
+
+Rcpp modules are inspired by Boost.Python and makes exposing C++ functions or
+classes to R even easier.  Rcpp modules are also described in more detail in
+their own vignette.
+
+
+===== Documentation =====
+
+The package contains a total of nine vignette the first of which provides a
+short and succinct introduction to the Rcpp package along with several
+motivating examples.  
+
+
+===== Links =====
+
+Rcpp main page: http://dirk.eddelbuettel.com/code/rcpp.html
+R-forge project page: http://r-forge.r-project.org/projects/rcpp/
+Dirk's blog section about Rcpp: http://dirk.eddelbuettel.com/blog/code/rcpp/
+Romain's blog section about Rcpp: http://romainfrancois.blog.free.fr/index.php?category/R-package/Rcpp
+
+
+===== Support =====
+
+Questions about Rcpp should be directed to the Rcpp-devel mailing list
+https://lists.r-forge.r-project.org/cgi-bin/mailman/listinfo/rcpp-devel
+
+
+
+ -- Dirk Eddelbuettel, Romain Francois, Doug Bates and John Chambers
+    December 2010
+
+
+

