Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!
Get Started for Free

sens2

Calculate Mean Sensitivity on Series with a Trend


Description

This function calculates mean sensitivity of a raw or detrended ring-width series.

Usage

sens2(x)

Arguments

x

a numeric vector containing the series

Details

This calculates mean sensitivity according to Eq. 2 in Biondi and Qeadan (2008). This is a measure of sensitivity in dendrochronology that is typically used in the presence of a trend. However, note that mean sensitivity is not a robust statistic and should rarely, if ever, be used (Bunn et al. 2013).

Value

the mean sensitivity.

Author(s)

Mikko Korpela, based on original by Andy Bunn

References

Biondi, F. and Qeadan, F. (2008) Inequality in Paleorecords. Ecology, 89(4), 1056–1067.

Bunn, A. G., Jansma, E., Korpela, M., Westfall, R. D., and Baldwin, J. (2013) Using simulations and data to evaluate mean sensitivity (zeta) as a useful statistic in dendrochronology. Dendrochronologia, 31(3), 250–254.

See Also

Examples

library(utils)
data(ca533)
ca533.rwi <- detrend(rwl = ca533, method = "ModNegExp")
sens2(ca533.rwi[, 1])

dplR

Dendrochronology Program Library in R

v1.7.2
GPL (>= 2)
Authors
Andy Bunn [aut, cph, cre, trl], Mikko Korpela [aut, cph, trl], Franco Biondi [aut, cph], Filipe Campelo [aut, cph], Pierre Mérian [aut, cph], Fares Qeadan [aut, cph], Christian Zang [aut, cph], Allan Buras [ctb], Jacob Cecile [ctb], Manfred Mudelsee [ctb], Michael Schulz [ctb], Klesse Stefan [ctb], Frank David [ctb], Visser Ronald [ctb]
Initial release
2021-01-27

We don't support your browser anymore

Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.