sens1 {dplR}

Calculate Mean Sensitivity

Description

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

Usage

  sens1(x)

Arguments

x

a numeric vector containing the series

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).

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

sens2, rwl.stats

Examples

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