treering {datasets}R Documentation

Yearly Treering Data, -6000-1979

Description

Contains normalized tree-ring widths in dimensionless units.

Usage

treering

Format

A univariate time series with 7981 observations. The object is of class "ts".

Each tree ring corresponds to one year.

Details

The data were recorded by Donald A. Graybill, 1980, from Gt Basin Bristlecone Pine 2805M, 3726-11810 in Methuselah Walk, California.

Source

Time Series Data Library: http://www-personal.buseco.monash.edu.au/~hyndman/TSDL/, series ‘CA535.DAT

References

For background on Bristlecone pines and Methuselah Walk, see http://www.sonic.net/bristlecone/; for some photos see http://www.ltrr.arizona.edu/~hallman/sitephotos/meth.html


[Package datasets version 2.1.0 Index]