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| analyticFunction | Analytic function |
| BP | Simple bandpass function |
| envelope | Calculates the envelope of a band limited signal |
| filter.fft | Filter in the frequency domain |
| filter.lomb | Filter and reconstruction of data analysed via spec.lomb |
| H | The Hilbert-transformation |
| interpolate.fft | interpolates data using the Fourier back transform |
| lmb | Lomb-Scargle estimation function |
| plot.fft | Plot 'fft'-objects |
| plot.lomb | plot method for Lomb-Scargle periodograms |
| spec.fft | 1D/2D spectrum of the Fourier transform |
| spec.lomb | Lomb-Scargle Periodigram |
| waterfall | Estimate the local frequencies |
| win.cos | Cosine window function |
| win.tukey | Tukey window function |
| Windowfunctions | Windowfunctions |