ccs_io, a Python code which reads and writes Compressed Column Storage (CCS) sparse matrix files.
An MxN sparse matrix of NCC nonzero entries in compressed column format is described by three items:
The nonzero entries of column J are stored in locations CCC(J) through CCC(J+1)-1 of ICC and ACC.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
ccs_io is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version and a Python version.
ccs, a dataset directory which contains examples of the Compressed Column Storage (CCS) sparse matrix file format;
st_io, a Python code which reads and writes sparse linear systems stored in the Sparse Triplet (ST) format.