| ldiMatrix-class {Matrix} | R Documentation |
The class "ldiMatrix" of logical diagonal matrices.
Objects can be created by calls of the form new("ldiMatrix", ...)
but typically rather via Diagonal.
x:"logical" vector.
diag:"character" string, either "U" or "N",
see ddiMatrix.
Dim,Dimnames:matrix dimension and
dimnames, see the Matrix class
description.
Class "diagonalMatrix" and
class "lMatrix", directly.
Class "sparseMatrix", by class "diagonalMatrix".
Classes ddiMatrix and
diagonalMatrix; function Diagonal.
(lM <- Diagonal(x = c(TRUE,FALSE,FALSE))) str(lM)#> gory details (slots) crossprod(lM) # numeric (nM <- as(lM, "nMatrix"))# -> sparse (not formally ``diagonal'') crossprod(nM) # logical sparse