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% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/basic.R
\name{is_igraph}
\alias{is_igraph}
\title{Is this object an igraph graph?}
\usage{
is_igraph(graph)
}
\arguments{
\item{graph}{An R object.}
}
\value{
A logical constant, \code{TRUE} if argument \code{graph} is a graph
object.
}
\description{
Is this object an igraph graph?
}
\examples{
g <- make_ring(10)
is_igraph(g)
is_igraph(numeric(10))
}
\author{
Gabor Csardi \email{csardi.gabor@gmail.com}
}
\keyword{graphs}
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