armadillo Archives

[Solved] Moving from sourceCpp to a package with RcppArmadillo

September 4, 2022 by Kirat

There are a few things that could be wrong. Primarily, you do need to modify the DESCRIPTION file to include LinkingTo: Rcpp, RcppArmadillo and ensure that #include <RcppArmadillo.h> is present in each .cpp file in the /src directory. You will also need to include two Makevars files. Makevars.win and Makevars with: PKG_LIBS = $(LAPACK_LIBS) $(BLAS_LIBS) … Read more

[Solved] How much memory is required to store a matrix using the armadillo linear algebra package?

August 24, 2022 by Kirat

The mat type stores an array of doubles, so to get the size of the array as bytes: A.n_elem * sizeof(double) The total amount of memory used by A is sizeof(A) + (A.n_elem * sizeof(double)). solved How much memory is required to store a matrix using the armadillo linear algebra package?