% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/tbl.R
\name{[.obr_tbl}
\alias{[.obr_tbl}
\title{Subset an obr_tbl, preserving provenance}
\usage{
\method{[}{obr_tbl}(x, ...)
}
\arguments{
\item{x}{An \code{obr_tbl}.}

\item{...}{Subsetting arguments passed to [\verb{[.data.frame}].}
}
\value{
An \code{obr_tbl} if the subset is two-dimensional, otherwise the
underlying vector.
}
\description{
Standard data.frame subsetting drops the \code{obr_tbl} class. This method
preserves it (and the provenance attributes) when the result is still a
data.frame.
}
