[Rcpp-devel] [RcppArmadillo] Result of Rcpp Wrap() for Sparse Matrix

[Binxiang Ni]

Hi,

I am working on fixing sparse matrix conversion for RcppArmadillo. Now a
problem comes up to me: what kind of sparse matrix is expected to pass from
Armadillo to R? That is, what should the result of wrap() be? dgCMatrix(if
logical, lgCMatrix or ngCMatrix)  or their original type?

If you are familiar with sparse matrix, please do me a favor.

Best,
Binxiang
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