# Computation of the cone of influence

### Description

Wavelet transformation of a time series includes padding with zeros at the edges. This function determines the spectrum borders influenced by edge effects.

This code has been developed by Huidong Tian (archived R package `WaveletCo`

).

### Usage

1 |

### Arguments

`start` |
starting value (in time units) at the time axis |

`dt` |
time resolution, i.e. sampling resolution on time domain |

`nc` |
number of columns/time steps |

`nr` |
number of rows/scales |

`Period` |
the Fourier periods (in time units) |

### Value

a list with the following elements:

x, y | : | coordinates of the cone of influence | |

axis.1, axis.2 | : | the axes for plotting purpose |

### Author(s)

Code developed by Huidong Tian.

### References

Tian, H., and Cazelles, B., 2012. `WaveletCo`

. Available at http://cran.r-project.org/src/contrib/Archive/WaveletCo/, archived April 2013; accessed July 26, 2013.

### See Also

`analyze.wavelet`

, `analyze.coherency`

, `wt.image`

, `wc.image`

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