Eridk,
See these Rcpp Gallery article from 2012 for worked examples:
- http://gallery.rcpp.org/articles/using-rmath-functions/
has an example on pnorm that applies to your dnorm case
- http://gallery.rcpp.org/articles/random-number-generation/
discusses the RNGs, but the d/p/q
Hello,
Functions in sugar only apply to vectors.
For a single value, you’d have to use the dnorm function in the R:: namespace:
// [[Rcpp::export]]
double test6(double x){
double y = R::dnorm(x,5.0,2.0,true);
return y;
}
> test6(3)
[1] -2.112086
> dnorm(3, mean = 5, sd = 2, log = TRUE)
Hi, I just tried to calculate the density of a normal variable using dnorm.
I found that if the input is of type NumericVector, then it was fine. But
if the input is of type double, it yielded error in compilation. For
example:
// [[Rcpp::export]]
NumericVector test5(NumericVector x)
{
NumericV
gar::Vectorized_INTSXP<__SYMBOL__,NA,T>( t ) ;
\
}
\
}
Thanks!
Søren
|-Original Message-
|From: Dirk Eddelbuettel [mailto:[email protected]]
|Sent: 4. januar 2015 21:51
|To: Søren Højsgaard
|Cc: Dirk Eddelbuettel; [email protected]
|Subject: RE: [Rcpp-devel] Rcpp sugar prese
On 4 January 2015 at 19:58, Søren Højsgaard wrote:
| Thanks! Probably a stupid question, but where are these functions defined? In
math.h I see
|
| VECTORIZED_MATH_1(log,::log)
|
| but - where to look for the implementation?
You mean where VECTORIZED_MATH is defined?
Let me introduce you to
: Søren Højsgaard
|Cc: [email protected]
|Subject: Re: [Rcpp-devel] Rcpp sugar preserving attributes
|
|
|Søren,
|
|Happy New Year!
|
|On 4 January 2015 at 09:53, Søren Højsgaard wrote:
|| Dear all,
||
|| I have noticed an issue with preserving attributes (or rather
|attributes that
Søren,
Happy New Year!
On 4 January 2015 at 09:53, Søren Højsgaard wrote:
| Dear all,
|
| I have noticed an issue with preserving attributes (or rather attributes that
are not preserved). Consider this code where I take the log of an array:
Quite possible.
Attributes are just attached to ob
Dear all,
I have noticed an issue with preserving attributes (or rather attributes that
are not preserved). Consider this code where I take the log of an array:
#include
using namespace Rcpp;
//[[Rcpp::export]]
NumericVector fun1(NumericVector x){
return log( x );
}
//[[Rcpp::export]]
Numer
Le 10/05/13 17:40, Julien Duvanel a écrit :
Hello again,
I hope I don't disturb you too much. I have again a small question. I
haven't seen the answer on your vignette, maybe this is not possible.
Here's what I would like to do :
/double Foo(double x, double a1, double a2) {/
/return f(x,a1,a2)
Hello,
Thanks for you quick answer (again!). After some research, I found the
functions : Mapply_2, and Mapply_3. I'll have a look how it works.
I haven't understood the second proposition but if the first one works it's
fine.
Have a nice evening,
J.
Le vendredi, 10 mai 2013 à 17:47, Roma
Iirc we have mapply2 and mapply3.
Otherwise you can make Foo a helper class instead of a function. And you embed
the 3 variables in your class.
Le 10 mai 2013 à 17:40, Julien Duvanel a écrit :
> Hello again,
>
> I hope I don't disturb you too much. I have again a small question. I haven't
Hello again,
I hope I don't disturb you too much. I have again a small question. I haven't
seen the answer on your vignette, maybe this is not possible. Here's what I
would like to do :
double Foo(double x, double a1, double a2) {
return f(x,a1,a2);
}
NumericVector myVec;
sapply(myVec, Foo(
Thanks a lot. That helped.
Regards
Bharath
On Tue, Feb 19, 2013 at 10:53 AM, Romain Francois
wrote:
> _ is defined in the Rcpp namespace, so perhaps you want to add :
>
> using namespace Rcpp ;
>
> somewhere on top.
>
> Also, you could use mat.row(1) instead of mat(1,_)
>
> Romain
>
> Le 19/02/1
_ is defined in the Rcpp namespace, so perhaps you want to add :
using namespace Rcpp ;
somewhere on top.
Also, you could use mat.row(1) instead of mat(1,_)
Romain
Le 19/02/13 16:49, Bharath Govindarajan a écrit :
Hi ,
I am trying a simple example to assign entire rows to a
Rcpp::NumericMat
Hi ,
I am trying a simple example to assign entire rows to a
Rcpp::NumericMatrix. I read the Rcpp sugar document and looked at a few
online
examples. My simple code below produces errors:
#include
#include
using std::cout;
using std:endl;
// [[Rcpp::export]
void test()
{
Rcpp::Nume
Hello,
Initially motivated by Doug's question:
http://article.gmane.org/gmane.comp.lang.r.rcpp/412
and drafted quickly in : http://article.gmane.org/gmane.comp.lang.r.rcpp/422
I've added some code in Rcpp that I call "Rcpp sugar" (another name I
had in mind was "Rcpp plasma". I like sugar be
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