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% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/interface.R
\name{is_directed}
\alias{is_directed}
\title{Check whether a graph is directed}
\usage{
is_directed(graph)
}
\arguments{
\item{graph}{The input graph}
}
\value{
Logical scalar, whether the graph is directed.
}
\description{
Check whether a graph is directed
}
\examples{
g <- make_ring(10)
is_directed(g)
g2 <- make_ring(10, directed = TRUE)
is_directed(g2)
}
\seealso{
Other structural queries:
\code{\link{[.igraph}()},
\code{\link{[[.igraph}()},
\code{\link{adjacent_vertices}()},
\code{\link{are_adjacent}()},
\code{\link{ends}()},
\code{\link{get_edge_ids}()},
\code{\link{gorder}()},
\code{\link{gsize}()},
\code{\link{head_of}()},
\code{\link{incident}()},
\code{\link{incident_edges}()},
\code{\link{neighbors}()},
\code{\link{tail_of}()}
}
\concept{structural queries}
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