Utilities for big.matrix objects of package bigmemory

Description

Extend the bigmemory package with various analytics. In addition to the more obvious summary statistics (see colmean, etc...), biganalytics offers biglm.big.matrix, bigglm.big.matrix, bigkmeans, binit, and apply for big.matrix objects. Some of the functions may be used with native R objects, as well, providing gains in speed and memory-efficiency.

Author(s)

Michael J. Kane and John W. Emerson.

Maintainers Michael J. Kane <bigmemoryauthors@gmail.com>

References

http://www.bigmemory.org

Examples

library(bigmemory)

x <- big.matrix(5, 2, type="integer", init=0,
                dimnames=list(NULL, c("alpha", "beta")))
x
x[,]
x[,1] <- 1:5
x[,]
mean(x)
colmean(x)
summary(x)
apply(x, 1, mean)