sequence (version 2.0)

symet: Symmetrization and diagonal loading of a transition matrix

Description

Adds the matrix to its transpose (X + t(X)) and loads its diagonal by the sum of each row.

Usage

symet(x, sym = TRUE, charge = TRUE, ident = FALSE)

Arguments

x

data.frame: The matrix to process as a data.frame

sym

logical: symmetrisation.

charge

logical: diagonal loading.

ident

logical: first column consists in identifiers.

Value

a data.frame: the resulting matrix

References

Pierre, J. S. and C. Kasper (1990). The Design of Ethological Flow-Charts on Factorial Analysis Representations - an Application to the Study of the male Mole-Cricket Sexual Courtship. Biology of Behaviour 15(3-4): 125-151. Van der Heijden, P. G. M. 1986. Transition matrices, model fitting and correspondence analysis. In: Data Analysis and Informatics IV (Ed. by E. Diday), pp. 221-226. Elsevier Science Publishers.

See Also

flux,matrcom

Examples

# NOT RUN {
	data(wiepkema)
	swiepkema<-symet(wiepkema,ident=TRUE)
	print(swiepkema)
# }