matsums — dimops • fmlr

Compute the sums/means of the rows/columns of a matrix.

Sweep a vector through the rows/cols of a matrix using an arithmetic operation.

dimops_rowsums(x, s = NULL)

dimops_rowmeans(x, s = NULL)

dimops_colsums(x, s = NULL)

dimops_colmeans(x, s = NULL)

dimops_rowsweep(x, s, op)

dimops_colsweep(x, s, op)

Arguments

x	Input matrix.
s	Either `NULL` or an already allocated fml matrix of the same class and type as `x`.
op	The operation: `SWEEP_ADD`, `SWEEP_SUB`, `SWEEP_MUL`, or `SWEEP_DIV`.

Value

Returns the matrix sum.