calc_age: Calculate age in years

In DanielGardiner/EpiFunc: Epidemiology Functions

Description

Calculate age in years

Usage

calc_age(dob, ref.date)

Arguments

dob	a vector of dates (should be date of births)
ref.date	a vector of dates (should be the reference date to calculate age)

Value

a numeric vector containing age in years

Author(s)

Daniel Gardiner ([e-mail])

Examples

# set dummy data

# set.seed(2)

data = data.frame(date.of.birth = sample(seq(as.Date('1900-01-01'), as.Date('1990-12-31'), by="day"), 30, replace = TRUE),
                  onset.date = sample(seq(as.Date('1991-01-01'), as.Date('2010-12-31'), by="day"), 30, replace = TRUE))

# use function

calc_age(dob = data$date.of.birth,
         ref.date = data$onset.date)

DanielGardiner/EpiFunc documentation built on July 25, 2019, 10:53 p.m.