R: Wavelet Frequency Scale

scal2freqs {RSEIS} | R Documentation

## Wavelet Frequency Scale

### Description

Get frequencies associated with the wavelet transform.

### Usage

    scal2freqs(octs, dt, plot = FALSE)

### Arguments

`octs` | number of octaves
`dt` | sample rate, s
`plot` | logical, TRUE=plot

### Details

Use morelet wavelet to estimate frequency from wavelet transform.

### Value

frequency values

### Author(s)

Jonathan M. Lees<jonathan.lees.edu>

### See Also

Mmorlet, fft

### Examples

    noctave <- 6
    nvoice <- 20
    dt <- 0.004
    i1 <- sort(rep(c(1:noctave), times=nvoice))
      jj <- rep(c(0:(nvoice-1)), times=noctave)

      sa <- 2^(i1+jj/nvoice)

      efs <- scal2freqs(sa, dt)

[Package RSEIS version 3.7-4 Index]