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]