R: Envelope Function with Hilbert Transform

envelope {RSEIS} | R Documentation

## Envelope Function with Hilbert Transform

### Description

Envelope Function with Hilbert Transform

### Usage

    envelope(x)

### Arguments

`x` | signal vector

### Details

Uses the hilbert transform to get the envelope function.

### Value

vector of the absolute of the hilbert transform

### Author(s)

Jonathan M. Lees<jonathan.lees.edu>

### Examples

    data(CE1)
    ev <- envelope(CE1$y)
    plot(CE1$x, CE1$y, type='l')
    lines(CE1$x,ev, col='red')

[Package RSEIS version 3.7-4 Index]