CalcR2 {evolqg}

Mean Squared Correlations

Description

Calculates the mean squared correlation of a covariance or correlation matrix. Measures integration.

Usage

CalcR2(c.matrix)

Arguments

c.matrix

Covariance or correlation matrix.

Details

Warning: CalcEigenVar is strongly preferred and should probably be used in place of this function.

Value

Mean squared value of off diagonal elements of correlation matrix

Author(s)

Diogo Melo, Guilherme Garcia

References

Porto, Arthur, Felipe B. de Oliveira, Leila T. Shirai, Valderes de Conto, and Gabriel Marroig. 2009. "The Evolution of Modularity in the Mammalian Skull I: Morphological Integration Patterns and Magnitudes." Evolutionary Biology 36 (1): 118-35. doi:10.1007/s11692-008-9038-3.

Porto, Arthur, Leila Teruko Shirai, Felipe Bandoni de Oliveira, and Gabriel Marroig. 2013. "Size Variation, Growth Strategies, and the Evolution of Modularity in the Mammalian Skull." Evolution 67 (July): 3305-22. doi:10.1111/evo.12177.

See Also

Flexibility

Examples

cov.matrix <- RandomMatrix(10, 1, 1, 10)

# both of the following calls are equivalent,
# CalcR2 converts covariance matrices to correlation matrices internally
CalcR2(cov.matrix)
CalcR2(cov2cor(cov.matrix))