Cross-product methods for adgCMatrix

Compute \(t(x) \%*\% y\) (crossprod) or \(x \%*\% t(y)\) (tcrossprod) for sparse adgCMatrix objects, dispatching through the amatrix backend.

Usage

# S4 method for class 'adgCMatrix,missing'
crossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,ANY'
crossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,matrix'
crossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,Matrix'
crossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,dgeMatrix'
crossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,dgCMatrix'
crossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,adgeMatrix'
crossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,adgCMatrix'
crossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,missing'
tcrossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,ANY'
tcrossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,matrix'
tcrossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,Matrix'
tcrossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,dgeMatrix'
tcrossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,dgCMatrix'
tcrossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,adgeMatrix'
tcrossprod(x, y = NULL, ...)

# S4 method for class 'adgCMatrix,adgCMatrix'
tcrossprod(x, y = NULL, ...)

Arguments

x

An adgCMatrix.

y

A matrix-like object or NULL/missing for the symmetric form.

...

Further arguments passed to the backend.

Value

An adgeMatrix or adgCMatrix containing the result.

Examples

sp <- as(matrix(c(1, 0, 0, 2, 1, 0), 3, 2), "dgCMatrix")
A  <- adgCMatrix(sp)
crossprod(A)
#> An amatrix dense matrix [cpu|policy=auto|precision=strict]
#> 2 x 2 Matrix of class "adgeMatrix"
#>      [,1] [,2]
#> [1,]    1    2
#> [2,]    2    5