R: Fast Fourier transform features.

extractFDAFourier {mlr} | R Documentation

## Fast Fourier transform features.

### Description

The function extracts features from functional data based on the fast fourier transform. For more details refer to stats::fft.

### Usage

    extractFDAFourier(trafo.coeff = "phase")

### Arguments

`trafo.coeff` | (character) Specifies which transformation of the complex frequency domain representation should be calculated as a feature representation. Must be one of “amplitude” or “phase”. Default is “phase”.

### Value

(data.frame).

### See Also

Other fda_featextractor: `extractFDAFPCA`, `extractFDAMultiResFeatures`, `extractFDAWavelets`

[Package mlr version 2.15.0 Index]