campelo_chapman: campelo_chapman

Description Usage Arguments Value References See Also Examples

View source: R/false_ring_proportion.R

Description

Chapman model fitting to size classes for the calculation of size corrected IADF frequencies according to Campelo et al. (2015).

Usage

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campelo_chapman(campelo_freq_object, min.n = 15, start = NULL,
  make.plot = TRUE, max.iter = 500, ...)

Arguments

campelo_freq_object

a campelo frequency object, output of campelo_freq

min.n

minimum number of samples within each group to be included in model estimation

start

set custom start values - default to list(a = 0.8, b = 0.03, c = 12.5)

make.plot

logical

max.iter

maximum iterations for internally used nls

...

additional plotting arguments

Value

a model object of class "nls"

References

Campelo, F., Vieira, J., Battipaglia, G. et al. Which matters most for the formation of intra-annual density fluctuations in Pinus pinaster: age or size? Trees (2015) 29: 237. doi:10.1007/s00468-014-1108-9 http://link.springer.com/article/10.1007/s00468-014-1108-9.

See Also

campelo_freq, campelo_index

Examples

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konradmayer/iadf documentation built on June 9, 2017, 2:50 a.m.