getpsi: Symmetry index - psi -

In DLEIVA/DyaDA: Dyadic Data Analysis

Description

Function to obtain the symmetry index by means of the observed sociomatrix.

Usage

   getpsi(X)

Arguments

X	Original sociomatrix

Details

getpsi is only applied for square matrices in which the set of n actors is also the set of n partners.

Value

psi	The symmetry index is based on dyadic discrepancies. The index is the ratio between the sum of squared values due to the symmetrical part and the total sum of squared values.It ranges from 0.5 to 1 and it is a measure of social reciprocity.

Author(s)

David Leiva [e-mail].

References

Solanas, A., Salafranca, Ll., Riba, C., Sierra, V., & Leiva, D. (2006). Quantifying social asymmetric structures. Behavior Research Methods, 38, 390-399.

See Also

getphi,reciptest1

Examples

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  X=matrix(c(0, 1, 2, 1, 0, 1, 3, 1, 0),nrow=3,ncol=3)

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