treering: Yearly Treering Data, -6000--1979
Description
Contains normalized tree-ring widths in dimensionless units.format
A univariate time series with 7981 observations. The object is of
class "ts"
. Each tree ring corresponds to one year.
source
Time Series Data Library:
http://www-personal.buseco.monash.edu.au/~hyndman/TSDL/,
series CA535.DATDetails
The data were recorded by Donald A. Graybill, 1980, from
Gt Basin Bristlecone Pine 2805M, 3726-11810 in Methuselah Walk, California.References
For some photos of Methuselah Walk see
http://www.ltrr.arizona.edu/~hallman/sitephotos/meth.html