Check whether a square matrix is symmetric {Rfast} | R Documentation |
Check whether a square matrix is symmetric.
is.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.symmetric(s1)
x <- x[1:100, ]
is.symmetric(x)
x<-s1<-NULL