<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The study presents a proposal of application of the statistical permutation test, known from other applications, for searching for the symptoms of cyclicity, in particular related to solar activity, in the annual growth sequences of trees. The test consists in generation of random sequences of the increment widths observed and comparison of their periodograms with the periodogram of the sequence analysed. This allows for evaluation of the significance of the individual frequencies in the total variability. The model calculations carried out indicate that in the studies on cyclicity in dendrochronological sequences satisfactory results could be obtained in the analysis of sets of the individual sequences (but not the chronologies produced from them). It is important to generate sufficiently high numbers (1000 and more) of random sequences and to apply relatively low significance levels (at 0.05, or even 0.01).</p></abstract>

The study presents a proposal of application of the statistical permutation test, known from other applications, for searching for the symptoms of cyclicity, in particular related to solar activity, in the annual growth sequences of trees. The test consists in generation of random sequences of the increment widths observed and comparison of their periodograms with the periodogram of the sequence analysed. This allows for evaluation of the significance of the individual frequencies in the total variability. The model calculations carried out indicate that in the studies on cyclicity in dendrochronological sequences satisfactory results could be obtained in the analysis of sets of the individual sequences (but not the chronologies produced from them). It is important to generate sufficiently high numbers (1000 and more) of random sequences and to apply relatively low significance levels (at 0.05, or even 0.01).

The Permutation Test for Testing the Statistical Significance of the Power Spectrum Estimation in Dendrochronological Analysis

Faculty of Geology, Geophysics and Environmental Protection, AGH - University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland

Geochronometria

The study presents a proposal of application of the statistical permutation test, known from other applications, for searching for the symptoms of cyclicity,...

The Permutation Test for Testing the Statistical Significance of the Power Spectrum Estimation in Dendrochronological Analysis

Pubblicato online: 25 nov 2010

Pagine: 23 - 29

DOI: https://doi.org/10.2478/v10003-010-0022-4

Parole chiave
tree-rings, cyclicity, permutation test, dendrochronological analysis

This content is open access.

The Permutation Test for Testing the Statistical Significance of the Power Spectrum Estimation in Dendrochronological Analysis

Pubblicato online: 25 nov 2010

Pagine: 23 - 29

DOI: https://doi.org/10.2478/v10003-010-0022-4

Parole chiavetree-rings, cyclicity, permutation test, dendrochronological analysis

This content is open access.

Parole chiave
tree-rings, cyclicity, permutation test, dendrochronological analysis