novak_index {iadf}

novak_index

Description

Calculation of age corrected IADF frequencies according to Novak et al. (2013).

Usage

novak_index(iadf, model, po = NULL, method = "difference")

Arguments

iadf

A data frame with numeric columns representing individual series and years as rownames where years with IADF are marked binary with 1, those without with 0, years not covered by the series are set to NA.

model

a model, output of either novak_weibull

po

an optional data frame of pith offsets with series names in the first and pith offsets in the second column

method

method for the RCS detrending, 'quotient' or 'difference'

Value

a data frame

References

Novak, Klemen and Sánchez, Miguel Angel Saz and Čufar, Katarina and Raventós, Josep and de Luis, Martin. Age, climate and intra-annual density fluctuations in in Spain, IAWA Journal, 34, 459-474 (2013), doi:10.1163/22941932-00000037

See Also

novak_freq, novak_weibull

Examples

data('example_iadf')
model <- novak_weibull(novak_freq(example_iadf), 15)
novak_index(example_iadf, model)