64-Bit Extension of the SPArse Matrix R Package 'spam' R package spam64 version 2.11-4 Provides the Fortran code of the R package 'spam' with 64-bit integers. Loading this package together with the R package spam enables the sparse matrix class spam to handle huge sparse matrices with more than 2^31-1 non-zero elements. Documentation is provided in Gerber, Moesinger and Furrer (2017) <doi:10.1016/j.cageo.2016.11.015>. Software Suggests: spam (== 2.11-4) Reinhard Furrer <reinhard.furrer@math.uzh.ch> Comprehensive R Archive Network (CRAN) Reinhard Furrer [aut, cre] (ORCID: <https://orcid.org/0000-0002-6319-2332>), Florian Gerber [aut] (ORCID: <https://orcid.org/0000-0001-8545-5263>), Roman Flury [aut] (ORCID: <https://orcid.org/0000-0002-0349-8698>), Daniel Gerber [ctb], Kaspar Moesinger [ctb], Youcef Saad [ctb] (SPARSEKIT http://www-users.cs.umn.edu/~saad/software/SPARSKIT/), Esmond G. Ng [ctb] (Fortran Cholesky routines), Barry W. Peyton [ctb] (Fortran Cholesky routines), Joseph W.H. Liu [ctb] (Fortran Cholesky routines), Alan D. George [ctb] (Fortran Cholesky routines), Lehoucq B. Rich [ctb] (ARPACK), Maschhoff Kristi [ctb] (ARPACK), Sorensen C. Danny [ctb] (ARPACK), Yang Chao [ctb] (ARPACK) LGPL-2 BSD_3_clause + file LICENSE (https://CRAN.R-project.org/package=spam64/LICENSE) 2026-06-03 application/tgz https://CRAN.R-project.org/package=spam64 doi:10.32614/CRAN.package.spam64