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8.2.45.69 octave.dataset.treering

Static Method: out = treering ()

Yearly Treering Data, -6000-1979

Description

Contains normalized tree-ring widths in dimensionless units.

Format

A univariate time series with 7981 observations.

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 some photos of Methuselah Walk see https://web.archive.org/web/20110523225828/http://www.ltrr.arizona.edu/~hallman/sitephotos/meth.html.

Examples

t = octave.dataset.treering;