\name{chrIndices-methods}
\alias{chrIndices-methods}
\alias{chrIndices}
\title{Get a matrix of first and last index of features in each chromosome...}
\description{Get a matrix of first and last index of features in each chromosome}
\details{\code{chrIndices-methods}: Sometimes it is handy to know the first and last index for each chr.
This is like chrInfo but for feature indices rather than chromosome
locations.

}
\value{\code{chrIndices-methods}: data.frame with "first" and "last" columns

}
\author{Peter M. Haverty}
\arguments{\item{object}{GenoSet or RangedData}
}
\examples{data(genoset)
chrIndices(genoset.ds)
chrIndices(locData(genoset.ds))  # The same}
\alias{chrIndices,-method}
\alias{chrIndices}