Regarding the code not compiling….
Try:
src <- '
using Eigen::Map;
using Eigen::SparseMatrix;
using Eigen::LLT;
const SparseMatrix Omega(as >(Omegas));
const SparseMatrix invSqrtV(as >(invSqrtVs));
// First solver associated with Omega matrix (taken w.r.t to Upper triangular
view)
Eigen::Simpl
On 9 June 2015 at 06:24, Dirk Eddelbuettel wrote:
| | I'm trying to find a way to provide the additional functionality without
| | forcing the user to install these dependencies. On Linux/Mac a possible
| | way to do that would be to use autoconf, but from what I read Windows
| | support is goi
Dear all,
As requested I will try provide a better explanation. Consider the code
below:
Let C = V^{1/2}%*%Omega%*%V^{1/2} and C^{1/2} be the Cholesky
decomposition, such that C^{1/2}%*%C^{1/2}^T = C.
My goal is to compute Omega^{-1/2}%*%V{-1/2}.
My idea is to use that I know V^{-1/2} and rewrite
On 9 June 2015 at 09:38, Simon Barthelmé wrote:
| Dear list,
|
| I've been working on an image processing package for R
| (https://github.com/dahtah/imager) that uses Rcpp to provide an
| interface to the CImg library.
|
| Cimg is contained in just one header file, which makes it easy to ship
Hi Yixuan
That's very interesting, I didn't know Cairo used that trick. I'll look
into it, many thanks!
Simon
Le 09/06/2015 10:28, Yixuan Qiu a écrit :
Hi Simon,
As far as I know CRAN provides all the libraries you listed except
OpenCV
(http://cran.r-project.org/bin/windows/contrib/ThirdPa
Hi Simon,
As far as I know CRAN provides all the libraries you listed except OpenCV (
http://cran.r-project.org/bin/windows/contrib/ThirdPartySoftware.html). If
you intend to publish your package to CRAN and let CRAN build the Windows
version, I suppose you can directly make use of those libraries.
Dear list,
I've been working on an image processing package for R
(https://github.com/dahtah/imager) that uses Rcpp to provide an
interface to the CImg library.
Cimg is contained in just one header file, which makes it easy to ship
with an R package. It is relatively self-contained, but some
