matexpo {ape} | R Documentation

## Matrix Exponential

### Description

This function computes the exponential of a square matrix using a spectral decomposition.

### Usage

    matexpo(x)

### Arguments

`x` | a square matrix of mode numeric.

### Value

a numeric matrix of the same dimensions than ‘x’.

### Author(s)

Emmanuel Paradis

### Examples

    ### a simple rate matrix:
    m <- matrix(0.1, 4, 4)
    diag(m) <- -0.3
    ### towards equilibrium:
    for (t in c(1, 5, 10, 50)) print(matexpo(m*t))

[Package ape version 4.1 Index]