1% Generated by roxygen2: do not edit by hand 2% Please edit documentation in R/integerutil.R 3\name{firstNA} 4\alias{firstNA} 5\title{Position of first NA} 6\usage{ 7firstNA(x) 8} 9\arguments{ 10\item{x}{an R vector} 11} 12\value{ 13a reversed vector 14} 15\description{ 16This is substantially faster than \code{which.max(is.na(x))} 17} 18\examples{ 19x <- c(FALSE,NA,TRUE) 20firstNA(x) 21reverse_vector(x) 22\dontrun{ 23x <- 1:1e7 24system.time(rev(x)) 25system.time(reverse_vector(x)) 26} 27} 28\seealso{ 29\code{\link{which.max}}, \code{\link{is.na}}, \code{\link{anyNA}}, \code{\link{anyDuplicated}}, \code{\link{bit_anyDuplicated}} 30} 31