A new upstream release of the Eigen C++ template library for linear algebra was released a few days ago. And Yixuan Qiu did some really nice work rolling this into a new RcppEigen released and then sent me a nice pull requent. The new version is now on CRAN, and I will prepare a Debian in a moment too.

Upstream changes for Eigen are summarized in their changelog. On the RcppEigen side, Yixuan also rolled in some more changes on as() and wrap() converters as noted below in the NEWS entry.

Changes in RcppEigen version 0.3.2.2.0 (2014-08-19)

• Updated to version 3.2.2 of Eigen

• Rcpp::as() now supports the conversion from R vector to “row array”, i.e., Eigen::Array<T, 1, Eigen::Dynamic>

• Rcpp::as() now supports the conversion from dgRMatrix (row oriented sparse matrices, defined in Matrix package) to Eigen::MappedSparseMatrix<T, Eigen::RowMajor>

• Conversion from R matrix to Eigen::MatrixXd and Eigen::ArrayXXd using Rcpp::as() no longer gives compilation errors

Courtesy of CRANberries, there are diffstat reports for the most recent release.

Questions, comments etc about RcppEigen 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.