This works great Dirk. Thanks!
-Kevin
On Thu, Jan 31, 2013 at 6:19 PM, Dirk Eddelbuettel wrote:
>
> On 31 January 2013 at 17:41, Kevin Ushey wrote:
> | I was wondering - is there a way to translate between Vectors and
> Matrices? Eg,
> | reinterpreting a 100 length NumericVector as a 10x10 Nume
On 31 January 2013 at 17:41, Kevin Ushey wrote:
| I was wondering - is there a way to translate between Vectors and Matrices?
Eg,
| reinterpreting a 100 length NumericVector as a 10x10 NumericMatrix by setting
| the dimensions explicitly, or something of that form; preferably with a
minimal
| am
Hi guys,
I was wondering - is there a way to translate between Vectors and Matrices?
Eg, reinterpreting a 100 length NumericVector as a 10x10 NumericMatrix by
setting the dimensions explicitly, or something of that form; preferably
with a minimal amount of copying.
Alternatively, is there a prefe
Sorry but I am still struggling (even after reformatting the source code)
to understand what the problem is. For one thing it is not clear to me
what the Cm_class is for.
The fundamental rule for me is that I always declare functions like
//[[Rcpp::Export]]
Eigen::VectorXd testfunc(const MapVecd
Right. The problem comes up because of the constructor with one of my
classes. Here is a slightly extended minimal example:
// [[Rcpp::depends(RcppEigen)]]
#include
#include
typedef Eigen::Map MapVecd;
typedef Eigen::Map MapMatd; // (A). This one works
with (1) below
//typedef Eigen::Map MapMa
I should check the syntax before sending the message.
On Thu, Jan 31, 2013 at 11:30 AM, Douglas Bates wrote:
> The as function in RcppEigen can form an
>
> Eigen::Map
>
> but doesn't know how to form an
>
> Eigen::Map
>
> Generally I find that I confuse myself less when the const is outside the
The as function in RcppEigen can form an
Eigen::Map
but doesn't know how to form an
Eigen::Map
Generally I find that I confuse myself less when the const is outside the
Eigen::Map. In other words, I use something like
typedef Eigen::Map mMat;
const mMat M(mat_from_R);
This tells me that M i
I am compiling some source code using sourceCpp and getting a
compiling failure when the source has the line with the const keyword
but no failure when it does not, in the below source.
// file: minimaltest.cpp
// [[Rcpp::depends(RcppEigen)]]
#include
#include
typedef Eigen::Map MapVecd;
//typ
I agree that this is not a complete implementation; it isn't meant to be,
although it might still be a worth incorporating this into Rcpp with the
appropriate fixes in place.
For instance, the vector recycling issue is far from the greatest
limitation of this code: it handles character vectors wro
> The reason we used a callback to data.frame is close to lazyness on our
> part. With the R function, for example we know that columns of different
> sizes will be handled properly, with recylcling, etc ...
And S3 methods (as.data.frame) will be dispatched upon correctly etc.
Hadley
--
Chief
On Fri, Jan 18, 2013 at 6:25 PM, John Merrill wrote:
> Sure. I'll write something up for the gallery, but here's the crude
> outline.
>
> Here's the C++ code:
Is C++ really necessary here? I have the following R function in plyr:
quickdf <- function(list) {
rows <- unique(unlist(lapply(list,
Le 31/01/13 12:15, Robin Girard a écrit :
Merci Romain !
I am doing this to make possible a direct use of the result such as in
A=Sum(f1.Swap(0),f2.Etoile())
I see. I figured you were using some sort of chaining. I'm not a big fan
of methods that return a reference to the object they are wor
Le 15/01/13 16:20, John Merrill a écrit :
It appears that DataFrame::create is a thin layer on top of the R
data.frame call. The guarantee correctness, but also means the
performance of an Rcpp routine which returns a large data frame is
limited by the performance of data.frame -- which is utter
Merci Romain !
I am doing this to make possible a direct use of the result such as in
A=Sum(f1.Swap(0),f2.Etoile())
This is not really necessary but sometime convenient. That's old prog souvenirs
for me so please correct me if this is stupid.
Can it be that my clone is wrong ? (indeed I am no
Hello,
I can reproduce the compiler error on my mac. If I comment the methods
Swap and Etoile, then I can compile the package.
Now looking at the signatures:
cplfunction & Swap(double y) ;
cplfunction & Etoile() ;
I think the problem is that they return a reference. Looking at their
code, i
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