get_S_from_matrix: Calculate Estimate of Social Different according to Whitehead...

Description Usage Arguments

View source: R/calculate-sna-pars.R

Description

This function uses a max. likelhood to separate the variance of true association indices and the sampling variance. It's described in "Precision and power in the analysis of social structure using associations" (Whitehead, 2008, Animal Behaviour) and "Whitehead, H. 2008. Analyzing Animal Societies: Quantitative Methods for Vertebrate Social Analysis. Chicago: University of Chicago Press."

Usage

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get_S_from_matrix(
  i_j_sum,
  i_j_together,
  initial.values = c(0.5, 0.5),
  lower = c(0.01, 0.01),
  upper = c(1, 10)
)

Arguments

i_j_sum

Matrix with values i_j_sum[ij] used as denominator of the estimated association index (d in the Whitehead paper)

i_j_together

Matrix with values i_j_together[ij] number of observations of individuals i and j together (x in the Whitehead paper)

initial.values

Initial values for the parameters to be optimized over ('par' argument in 'optim“)

lower

lower bounds for parameters

upper

upper bounds for parameters


urskalbitzer/daginR documentation built on Jan. 21, 2020, 1:26 a.m.