% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/iterators.R
\name{.nei}
\alias{.nei}
\alias{.innei}
\alias{.outnei}
\alias{.inc}
\alias{.from}
\alias{.to}
\title{Helpers within vertex/index sequences}
\usage{
.nei(...)

.innei(...)

.outnei(...)

.inc(...)

.from(...)

.to(...)
}
\arguments{
\item{...}{Not used, here for compatibility.}
}
\value{
An error
}
\description{
Functions to be used only with \verb{[.igraph.es} and \verb{[.igraph.vs}
}
\details{
See \code{\link[igraph]{[.igraph.vs}} and \code{\link[igraph]{[.igraph.es}}.
}
\section{Related documentation in the C library}{
\href{https://igraph.org/c/html/0.10.17/igraph-Basic.html#igraph_vcount}{\code{vcount()}}, \href{https://igraph.org/c/html/0.10.17/igraph-Basic.html#igraph_get_eids}{\code{get_eids()}}, \href{https://igraph.org/c/html/0.10.17/igraph-Basic.html#igraph_edges}{\code{edges()}}, \href{https://igraph.org/c/html/0.10.17/igraph-Basic.html#igraph_ecount}{\code{ecount()}}
}

\keyword{internal}
