spec.taper {stats} | R Documentation |

## Taper a Time Series by a Cosine Bell

### Description

Apply a cosine-bell taper to a time series.

### Usage

spec.taper(x, p = 0.1)

### Arguments

`x` |
A univariate or multivariate time series |

`p` |
The proportion to be tapered at each end of the series,
either a scalar (giving the proportion for all series)
or a vector of the length of the number of series (giving the
proportion for each series.. |

### Details

The cosine-bell taper is applied to the first and last `p[i]`

observations of time series `x[, i]`

.

### Value

A new time series object.

### See Also

`spec.pgram`

, `cpgram`

[Package

*stats* version 2.5.0

Index]