| dgeMatrix-class {Matrix} | R Documentation |
A general numeric dense matrix in the S4 Matrix
representation. dgeMatrix is the “standard”
class for dense numeric matrices in the Matrix package.
Objects can be created by calls of the form new("dgeMatrix", ...)
or, more commonly, by coercion from the Matrix class (see
Matrix) or by Matrix(..).
x:"numeric" - the numeric
values contained in the matrix, in column-major order.Dim:"integer" - the dimensions
of the matrix - must be an integer vector with exactly two
non-negative values.Dimnames:Matrix.factors:"list" - a list
of factorizations of the matrix.
The are group methods (see, e.g., Arith)
signature(e1 = "dgeMatrix", e2 = "dgeMatrix"): ... signature(e1 = "dgeMatrix", e2 = "numeric"): ... signature(e1 = "numeric", e2 = "dgeMatrix"): ... signature(x = "dgeMatrix"): ... signature(x = "dgeMatrix", digits = "numeric"): ...and other matrix methods available:
signature(x = "dgeMatrix", y = "dgeMatrix"):
Matrix multiplication; ditto for several other signature
combinations, see showMethods("%*%", class = "dgeMatrix").signature(x = "dgeMatrix", vectors = "logical"): ... signature(x = "dgeMatrix", vectors = "missing"): ... signature(x = "dgeMatrix"): see chol.signature(from = "dgeMatrix", to = "lgeMatrix"): ... signature(from = "dgeMatrix", to = "matrix"): ... signature(from = "matrix", to = "dgeMatrix"): ... signature(x = "dgeMatrix"): columnwise means (averages)signature(x = "dgeMatrix"): columnwise sumssignature(x = "dgeMatrix", y = "dgeMatrix"):
ditto for several other signatures, use
showMethods("crossprod", class = "dgeMatrix"), matrix
crossproduct, an efficient version of t(x) %*% y.signature(x = "dgeMatrix"): ... signature(x = "dgeMatrix"): ... signature(x = "dgeMatrix"): ... signature(x = "dgeMatrix", only.values= "logical"): ...signature(x = "dgeMatrix", only.values= "missing"): ...signature(x = "dgeMatrix", type = "character"): ... signature(x = "dgeMatrix", type = "missing"): ... signature(x = "dgeMatrix", norm = "character"): ... signature(x = "dgeMatrix", norm = "missing"): ... signature(x = "dgeMatrix"): rowwise means (averages)signature(x = "dgeMatrix"): rowwise sumssignature(a = "dgeMatrix", b = "dgeMatrix"): ... signature(a = "dgeMatrix", b = "missing"): ... signature(x = "dgeMatrix"): ...
Classes Matrix,
dtrMatrix, and dsyMatrix.