Is the network directed?

Source: R/is.R

Check if the network is directed

is_directed(x)

Arguments

x

graph x

Value

logical, TRUE or FALSE

Details

This function checks if x is a directed network.

For an x of class igraph or network, the function checks for the appropriate attribute in the graph x.

For a matrix the function returns TRUE if the matrix is not symmetric.

For a data.frame the function returns TRUE if the reciprocity of the network is not exactly 0 or 1.

References

largely based on similar functions from the excellent migraph package. These methods are licensed through the MIT license in combination with copyright for James Hollway.

Examples

data(florentine, package = "snafun")
is_weighted(florentine$flobusiness)   # FALSE
#> [1] FALSE