cscMatrix class is a class of sparse matrices in
the compressed, sparse, column-oriented format. In this
implementation the non-zero elements in the columns are sorted into
increasing row order.new("cscBlocked",
...). Objects in this class have a structure similar to those in the
cscMatrix class except that each nonzero "element" is itself a
dense matrix with a given number of rows and columns. These objects
are used in the representation of linear mixed-effects model
structures in the lme4 package.
cscMatrix-class