cycles {astrochron} | R Documentation |

## Generate harmonic model

### Description

Make a time series with specified harmonic components and noise

### Usage

```
cycles(freqs=NULL,phase=NULL,amp=NULL,start=0,end=499,dt=1,noisevar=0,genplot=T,
verbose=T)
```

### Arguments

`freqs` |
Vector with frequencies to model ('linear' frequencies). |

`phase` |
Vector with phases for each frequency (phase in radians). Phases are subtracted. |

`amp` |
Vector with amplitudes for each frequency. |

`start` |
First time/depth/height for output. |

`end` |
Last time/depth/height for output. |

`dt` |
Sampling interval. |

`noisevar` |
Variance of additive Gaussian noise. |

`genplot` |
Generate summary plots? (T or F) |

`verbose` |
Verbose output? (T or F) |

### Value

modeled time series.

### Examples

```
## test signal on pg 38 of Choudhury, Shah, and Thornhill (2008)
freqs=c(0.12,0.18,0.30,0.42)
phase=c(-pi/3,-pi/12,-pi/4,-3*pi/8)
amp=c(1,1,1,1)
cycles(freqs,phase,amp,start=0,end=4095,dt=1,noisevar=0.2)
```

[Package

*astrochron*version 1.3 Index]