mirror of
https://github.com/msberends/AMR.git
synced 2024-12-27 13:26:11 +01:00
40 lines
1.6 KiB
R
40 lines
1.6 KiB
R
% Generated by roxygen2: do not edit by hand
|
|
% Please edit documentation in R/age.R
|
|
\name{age}
|
|
\alias{age}
|
|
\title{Age in years of individuals}
|
|
\usage{
|
|
age(x, reference = Sys.Date(), exact = FALSE)
|
|
}
|
|
\arguments{
|
|
\item{x}{date(s), will be coerced with \code{\link{as.POSIXlt}}}
|
|
|
|
\item{reference}{reference date(s) (defaults to today), will be coerced with \code{\link{as.POSIXlt}} and cannot be lower than \code{x}}
|
|
|
|
\item{exact}{a logical to indicate whether age calculation should be exact, i.e. with decimals. It divides the number of days of \href{https://en.wikipedia.org/wiki/Year-to-date}{year-to-date} (YTD) of \code{x} by the number of days in a year of \code{reference} (either 365 or 366).}
|
|
}
|
|
\value{
|
|
An integer (no decimals) if \code{exact = FALSE}, a double (with decimals) otherwise
|
|
}
|
|
\description{
|
|
Calculates age in years based on a reference date, which is the sytem date at default.
|
|
}
|
|
\section{Read more on our website!}{
|
|
|
|
On our website \url{https://msberends.gitlab.io/AMR} you can find \href{https://msberends.gitlab.io/AMR/articles/AMR.html}{a tutorial} about how to conduct AMR analysis, the \href{https://msberends.gitlab.io/AMR/reference}{complete documentation of all functions} (which reads a lot easier than here in R) and \href{https://msberends.gitlab.io/AMR/articles/WHONET.html}{an example analysis using WHONET data}.
|
|
}
|
|
|
|
\examples{
|
|
# 10 random birth dates
|
|
df <- data.frame(birth_date = Sys.Date() - runif(10) * 25000)
|
|
# add ages
|
|
df$age <- age(df$birth_date)
|
|
# add exact ages
|
|
df$age_exact <- age(df$birth_date, exact = TRUE)
|
|
|
|
df
|
|
}
|
|
\seealso{
|
|
\code{\link{age_groups}} to split age into age groups
|
|
}
|