Questions tagged [rcpparmadillo]
204 questions
1
vote
1 answer
Fail to call ones or eye function when using RcppArmadillo
I want to use one or eye function in Armadillo to construct matrices or vectors. However, it does not allow me to do so. Here is a sample code:
#include
// [[Rcpp::depends(RcppArmadillo)]]
using namespace Rcpp;
//…
tobinz
- 117
- 1
- 9
1
vote
1 answer
Use RcppArmadillo to calculate the tail sum of the vector
I wrote an R code to calculate the tail sum of a vector:
tailsum <- function(x){
sum(x) + x - cumsum(x)
}
I hope to improve the efficiency of this function through RcppArmadillo, so I wrote
#include
//…
Chen Huang
- 11
- 1
1
vote
1 answer
(Rcpp)armadillos abs() function outputs false values when used with c++ double while std::abs works
Consider this R function:
r_abs <- function(x,y,z){
2 * abs((x >= y) - z)
}
And those 2 RcppArmadillo equivalents:
// [[Rcpp::depends(RcppArmadillo)]]
// [[Rcpp::depends(RcppProgress)]]
#include
#include
#include…
BerriJ
- 913
- 7
- 18
1
vote
1 answer
why are nan being produced when assigning values in a cube?
I'm having this weird issue with Armadillo and RcppArmadillo. I'm creating a cube filled with zeroes values, and I want specific elements to be turned into ones. However, when I used an assigment to do that, values of other elements changle slightly…
JMenezes
- 1,004
- 1
- 6
- 13
1
vote
1 answer
Template classes arma::Col in Rcpp Armadilllo
Dear fellow programmers,
in order to write a bootstrapped regression version for a seminar at university I tried to implement my R-version into Rcpp (this is for comparison of R to C++/Rcpp). However, I'm stuck with the error messages I receive,…
Erin Sprünken
- 400
- 2
- 13
1
vote
0 answers
How can I calculate the time interval in rcpp?
I want to record my computing time for a for loop function. I write the function by rcpp, and use std::clock to measure the time interval. The rcpp code is as follow:
// [[Rcpp::depends(RcppArmadillo)]]
#include…
Xia.Song
- 416
- 3
- 15
1
vote
1 answer
Cannot install RcppArmadillo with R 4.0.3 and RedHat Linux 6.10
I have just installed R 4.0.3 on my local directory, on a computing cluster.
I'm using gcc 5.1.0 and I have set Sys.setenv("PKG_CXXFLAGS"="-std=c++11")
Rcpp installed fine.
But with RcppArmadillo, I get hundreds of lines of error messages like…
Drumy
- 450
- 2
- 16
1
vote
0 answers
R package compilation problem due to LAPACK on Ubuntu 20.04 after upgrade from 18.04
I have upgraded Ubuntu from 18.04 to 20.04 and now some of my R packages fail to compile/load. One example is shown below:
** testing if installed package can be loaded from temporary location
Error: package or namespace load failed for 'myPackage'…
Samo
- 2,065
- 20
- 41
1
vote
1 answer
Is there a way to mute warning in RcppArmadillo `arma::solve`?
When X is singular, the following code throws a warning. Is there a way of muting it?
"warning: solve(): system seems singular; attempting approx solution"
Function:
// [[Rcpp::depends(RcppArmadillo)]]
#include
using namespace…
JacobJacox
- 917
- 5
- 14
1
vote
0 answers
Error compiling C++ code in R 4.0 on Mac OS X Catalina
I'm trying to compile C++ code in R so I can install packages from source. I’m running R 4.0.2 on Mac OS X Catalina (10.15.6). I've followed instructions here for installing R Compiler Tools for Rcpp on Mac OS. However, when following the…
itpetersen
- 1,475
- 3
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- 32
1
vote
1 answer
Errors when using OptimLib in Rcpp
I encountered an error when using OptimLib library in Rcpp.First I copied sphere_fn function online in order to use it later in optim function. However, this shere_fn didn't work.
Error: can not initialize a member subobject of type…
Mohan Zhao
- 45
- 6
1
vote
0 answers
How to use both OpenMP and OpenBlas in RcppArmadillo?
I need to compute singular value decomposition (SVD) of an array of matrices stored in a RcppArmadillo cube. I would like to do the SVDs in parallel for each matrix and want to enable multi-threading in calculating the SVDs via OpenBLAS. For that I…
noirritchandra
- 103
- 9
1
vote
2 answers
fatal error: 'RcppArmadillo.h' file not found
Rcpp::sourceCpp('~/Desktop/my.cpp')
Was working on some stand alone Rcpparmadillo files and came across this error:
fatal error: 'RcppArmadillo.h' file not found
#include
^~~~~~~~~~~~~~~~~
The example "my.cpp":
//…
skatz
- 115
- 7
1
vote
1 answer
Rcpp function with List arguments returning a matrix
I have a section of code in r that is running quite slowly, and so I'm hoping to rewrite the function in rcpp, however, this is my first attempt using Rcpp, and I cannot get the code to compile or run.
In R, the section I am trying to rewrite is
…
mes
- 43
- 7
1
vote
1 answer
Error when installing bife package on Mac: RcppArmadillo
I am trying to install the package 'bife' using Rstudio but get the following error message:
install.packages("bife")
also installing the dependency ‘RcppArmadillo’
trying URL…
Rnovice
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