R: Willamette River time series

willamette {multitaper} | R Documentation

## Willamette River time series

### Description

Willamette River time series. Each point represents the log of the average daily flow over a one month period from October, 1950, to August 1983. The sampling time is 1/12 year and the Nyquist frequency is 6 cycles per year. The data is from the companion code to “Spectral Analysis for the Physical Applications” (1993) and was originally compiled by the US Geological Survey.

### Usage

    willamette

### Format

A vector containing 395 observations

### References

Percival, D.B. and Walden, A.T. (1993) Spectral analysis for physical applications. Cambridge University Press.

### Examples

    data(willamette)
    # time series object, January = year.0, December = year.917
    will.ts <- ts(data=willamette, start=(1950+9/12), freq=12)

[Package multitaper version 1.0-13 Index]