dplR (version 1.7.6)

sens1: Calculate Mean Sensitivity

Description

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

Usage

sens1(x)

Value

the mean sensitivity.

Arguments

x

a numeric vector containing the series

Author

Mikko Korpela, based on original by Andy Bunn

Details

This calculates mean sensitivity according to Eq. 1 in Biondi and Qeadan (2008). This is the standard measure of sensitivity in dendrochronology and is typically calculated on detrended series. However, note that mean sensitivity is not a robust statistic and should rarely, if ever, be used (Bunn et al. 2013).

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

sens2, rwl.stats

Examples

library(utils)
data(ca533)
ca533.rwi <- detrend(rwl = ca533, method = "ModNegExp")
sens1(ca533.rwi[, 1])