sens2 {dplR} | R Documentation |

## 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 |

### 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*version 1.7.7 Index]