Row and column sums

Compute row or column sums of a matrix or aMatrix, dispatching to an accelerated backend when one is available.

Usage

rowsums(x, na.rm = FALSE, dims = 1L)

colsums(x, na.rm = FALSE, dims = 1L)

Arguments

x

A matrix or aMatrix object.

na.rm

Logical; if TRUE, missing values are removed before summing. Default FALSE.

dims

Integer; the number of dimensions to regard as rows (for rowsums) or columns (for colsums). Default 1L.

Value

A numeric vector of length nrow(x) (rowsums) or ncol(x) (colsums).

Examples

m <- adgeMatrix(matrix(1:12, 3, 4))
rowsums(m)
#> [1] 22 26 30
colsums(m)
#> [1]  6 15 24 33