% Generated by roxygen2: do not edit by hand
% Please edit documentation in R/db.R
\name{countNA}
\alias{countNA}
\title{Count number of missing values in a vector}
\usage{
countNA(x)
}
\arguments{
\item{x}{a vector of values}
}
\value{
an integer equal to the number of NA entries in the vector
}
\description{
Count number of missing values in a vector
}
\examples{
countNA(letters) # = 0
countNA(c(letters, NA)) # = 1
}