big_increment: Increment an FBM
In bigstatsr: Statistical Tools for Filebacked Big Matrices

big_increment

R Documentation

Increment an FBM

Description

Increment an FBM

Usage

big_increment(X, add, use_lock = FALSE)

Arguments

`X`	An `FBM` (of type double) to increment.
`add`	A matrix of same dimensions as `X`. Or a vector of same size.
`use_lock`	Whether to use locks when incrementing. Default is `FALSE`. This is useful when incrementing in parallel.

Value

Returns nothing (NULL, invisibly).

Examples

X <- FBM(10, 10, init = 0)
mat <- matrix(rnorm(100), 10, 10)

big_increment(X, mat)
all.equal(X[], mat)

big_increment(X, mat)
all.equal(X[], 2 * mat)

bigstatsr documentation built on Sept. 11, 2024, 7:08 p.m.