Hello all,
I am wrapping a very simple C++ library in a package (to read wavefront
3D obj files). The results come back as a std::vector of a struct which
contains various fields using datatypes such as float, float[],
std::string. I am going to return this as a list of lists. Each of the
sub
On 6/22/2015 12:31, Ramon Diaz-Uriarte wrote:
Actually, I just noticed that things will not work if you need your package
to run on Windoze: Rtools uses gcc 4.6.3 there, and this will not work with
gcc 4.6 (neither in Linux nor Windows) with flag -std=c++0x or
-std=gnu++0x. I guess this should b
Hi Matt,
Thanks a lot for the details and the work. That is great! There is a
problem, though: in my particular case, I am uploading my package to
BioConcutor, and there the compiler for Win is 4.6.3 so I am restricted to
that. Including randutils will lead to an error during building the package
On 6/24/2015 15:07, Ramon Diaz-Uriarte wrote:
Hi Matt,
Thanks a lot for the details and the work. That is great! There is a
problem, though: in my particular case, I am uploading my package to
BioConcutor, and there the compiler for Win is 4.6.3 so I am restricted to
that. Including randutils wi
Thank you John,
I am familiar with bigmemory (I am one of the current developers
actually). The project I am working on doesn't need the shared memory
aspect so was intending to avoid the dependency and just leverage the more
familiar and developed Armadillo library. However your response inform
On 24 June 2015 at 08:22, Charles Determan wrote:
| Thank you John,
|
| I am familiar with bigmemory (I am one of the current developers actually).
| The project I am working on doesn't need the shared memory aspect so was
| intending to avoid the dependency and just leverage the more familiar a
On Wed, 24-06-2015, at 15:22, Matt D. wrote:
> On 6/24/2015 15:07, Ramon Diaz-Uriarte wrote:
>> Hi Matt,
>>
>> Thanks a lot for the details and the work. That is great! There is a
>> problem, though: in my particular case, I am uploading my package to
>> BioConcutor, and there the compiler for
The fastLm examples are nice but they don't contain anything relating to
passing an XPtr between functions. Regarding your comment about making an
XPtr around arma::mat 'innards' I'm not sure I fully understand. I tried
creating an XPtr around a arma::mat but no success on passing the object
betw
Hi Charles, comments inline
2015-06-24 11:03 GMT-04:00 Charles Determan :
> The fastLm examples are nice but they don't contain anything relating to
> passing an XPtr between functions. Regarding your comment about making an
> XPtr around arma::mat 'innards' I'm not sure I fully understand. I t
Many thanks Krzysztof, your suggestion works. I can explicitly create a
'new' arma::mat object and pass the resulting XPtr between functions. I
will work on making everything prettier and document for a submission to
Rcpp Gallery unless someone is aware of one that already exists that I
somehow o
Searching a little bit on the Internet I found a bug report on bugzilla
related to the issue I have.
From this comment
https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=14611#c3 on, Simon
Urbanek clarifies that all this has nothing to do with R. Rather, it is
about memory allocation in Lin
On Wed, Jun 24, 2015 at 11:08 AM, Charles Determan
wrote:
> Many thanks Krzysztof, your suggestion works. I can explicitly create a
> 'new' arma::mat object and pass the resulting XPtr between functions. I
> will work on making everything prettier and document for a submission to
> Rcpp Gallery
I have been exploring the use of RcppEigen more recently and stumbled upon
an issue when passing R objects. Is there a way to pass an R matrix and
get it in to a mapped Eigen MatrixXf object? I know R doesn't have a
native float type so I am not overly surprised that I have run in to this
issue.
Thanks Hadley, much more concise :)
On Wed, Jun 24, 2015 at 2:22 PM, Hadley Wickham wrote:
> On Wed, Jun 24, 2015 at 11:08 AM, Charles Determan
> wrote:
> > Many thanks Krzysztof, your suggestion works. I can explicitly create a
> > 'new' arma::mat object and pass the resulting XPtr between fu
On 24 June 2015 at 20:31, Fabio Tordini wrote:
| Searching a little bit on the Internet I found a bug report on bugzilla
| related to the issue I have.
|
| From this comment
| https://bugs.r-project.org/bugzilla3/show_bug.cgi?id=14611#c3 on, Simon
| Urbanek clarifies that all this has nothing
Hi Charles,
The Map class is designed to reuse the memory allocated by some other
program such as R, and due to this reason the memory layout must be
consistent with the declared matrix type. In R there is no such float
arrays, so there is no way to directly map it to a MatrixXf object. I
suppose y
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