R: Calculate Mean Sensitivity

sens1 {dplR} | R Documentation

## 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])

[Package dplR version 1.7.1 Index]