R: Rmatsolve

Rmatsolve {adlift} | R Documentation

## Rmatsolve

### Description

This function calculates matrix inverses for symmetric matrices.

### Usage

    Rmatsolve(m)

### Arguments

`m` | a (symmetric) matrix.

### Details

This function uses the eigenvalue decomposition of a matrix m to work out its inverse. The function is used here since standard matrix inverse algorithms do not cope well with matrices which are near singular (this often happens in the regression stages of the forward transforms.

### Value

`inv` | the matrix inverse of m.

### Author(s)

Matt Nunes (nunesrpackages@gmail.com), Marina Knight

### Examples

    #
    #create a 4x4 matrix
    m<-matrix(runif(16),4,4)

    temp<-crossprod(m)

    #i.e. temp is t(m)%*%m

    inv<-Rmatsolve(temp)

[Package adlift version 1.4-1 Index]