LinkedMatrix is an R package that provides matrices implemented as lists of matrix-like nodes, linked by columns or rows.
It was originally developed for the BGData package to address the array size limit of ff (length must be between 1 and .Machine$integer.max) by chaining multiple ff objects together.
This package is deliberately kept simple. For computational methods that use LinkedMatrix check out the BGData package.
The following code generates three different matrix-like objects and links them together by rows in a RowLinkedMatrix. The LinkedMatrix instance can then be treated like any other regular matrix.
library(LinkedMatrix)
m1 <- ff::ff(initdata = rnorm(50), dim = c(5, 10))
m2 <- bigmemory::big.matrix(init = rnorm(50), nrow = 5, ncol = 10)
m3 <- matrix(data = rnorm(50), nrow = 5, ncol = 10)
m <- RowLinkedMatrix(m1, m2, m3)
dim(m)
m[1, ]
m[, 1]Install the stable version from CRAN:
Alternatively, install the development version from GitHub:
Further documentation can be found on RDocumentation.