R: eigen

ddmatrix-eigen {pbdDMAT}

R Documentation

eigen

Description

Eigenvalue decomposition for distributed matrices with R-like syntax, with calculations performed by the PBLAS and ScaLAPACK libraries.

Usage

## S4 method for signature 'ddmatrix'
eigen(x, symmetric, only.values = FALSE,
  EISPACK = FALSE)

Arguments

`x`	numeric distributed matrices.
`symmetric`	logical, if `TRUE` then the matrix is assumed to be symmetric and only the lower triangle is used. Otherwise `x` is inspected for symmetry.
`only.values`	logical, if `TRUE` then only the eigenvalues are returned. Otherwise both eigenvalues and eigenvectors are returned.
`EISPACK`	Ignored.

Details

Extensions of R linear algebra functions.

Value

eigen() computes the eigenvalues, and eigenvectors if requested. As

Examples

## Not run: 
# Save code in a file "demo.r" and run with 2 processors by
# > mpiexec -np 2 Rscript demo.r

library(pbdDMAT, quiet = TRUE)
init.grid()

x <- ddmatrix(1:9, 3, bldim=2)

y <- eigen(crossprod(x))
y

finalize()

## End(Not run)

[Package pbdDMAT version 0.4-0 Index]