Rfast2: is.skew.symmetric – R documentation

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is.skew.symmetric

Check whether a square matrix is skew-symmetric

Check whether a square matrix is skew-symmetric.

is.skew.symmetric(x)

`x`	A square matrix with data.

Instead of going through the whole matrix, the function will stop if the first disagreement is met.

A boolean value, TRUE of FALSE.

Manos Papadakis

R implementation and documentation: Manos Papadakis <papadakm95@gmail.com>.

x <-matrix( rnorm( 100 * 400), ncol = 400 )
s1 <- cor(x)
is.skew.symmetric(s1)
x <- x[1:100, ]
is.skew.symmetric(x)

x<-s1<-NULL

A Collection of Efficient and Extremely Fast R Functions II

v0.0.9

GPL (>= 2.0)

Authors

Manos Papadakis, Michail Tsagris, Stefanos Fafalios and Marios Dimitriadis.

Initial release

2021-03-21