getimplandau: Improved Landau's Linearity Index -h'-

In DLEIVA/DyaDA: Dyadic Data Analysis

Description

Function to obtain improved Landau's h' index for quantifying the degree of linearity in social dominance hierarchies proposed by de Vries (1995).

Usage

   getimplandau(X)

Arguments

X	Original sociomatrix.

Details

getimplandau computes improved Landau's h' index in dominance hierarchies containing unknown or tied relationships. The index proposed by de Vries (1995) can be computed as follows:

	h' = h + {6 \over {N^3-N}} \times u,

where h is Landau's index and u is the number of unknown dyads.

Value

improvedlandauh

Improved Landau's index h'.

Author(s)

David Leiva <[e-mail]>, Antonio Solanas <[e-mail]>, Han de Vries <[e-mail]>, & David A. Kenny <[e-mail]>.

References

de Vries, H. (1995). An improved test of linearity in dominance hierarchies containing unknown or tied relationships. Animal Behaviour, 50, 1375-1389.

See Also

getexpech, getlandau, getvarh, linear.hierarchy.test.

Examples

  set.seed(123)
  X <- matrix(floor(runif(20*20,min=0,max=20)),nrow=20,byrow=TRUE)
  diag(X)<-0
  getimplandau(X)

DLEIVA/DyaDA documentation built on May 6, 2019, 1:17 p.m.