The dsCMatrix class is a class of symmetric, sparse
numeric matrices in the compressed, column-oriented format. In this
implementation the non-zero elements in the columns are sorted into
increasing row order.
The dsTMatrix class is the class of
symmetric, sparse numeric matrices in triplet format.
Arguments
Objects from the Class
Objects can be created by calls of the form new("dsCMatrix",
...) or new("dsTMatrix", ...)