| ddiMatrix-class {Matrix} | R Documentation |
The class "ddiMatrix" of numerical diagonal matrices.
Objects can be created by calls of the form new("ddiMatrix", ...)
but typically rather via Diagonal.
x:"numeric" ~~ diag:"character" ~~ Dim:"integer" ~~ Dimnames:"list" ~~ factors:"list" ~~
Class "diagonalMatrix", directly.
Class "dMatrix", directly.
Class "denseMatrix", by class "diagonalMatrix".
Class "Matrix", by class "denseMatrix" and class "dMatrix".
signature(x = "ddiMatrix", y = "ddiMatrix"): ...
diagonalMatrix-class;
Diagonal
(d2 <- Diagonal(x = c(10,1))) str(d2) M <- Matrix(cbind(1,2:4)) M %*% d2 #> `fast' multiplication