Split continuous ages to age groups

Usage

ages(x, groups, char = FALSE, below_min_val = NA)

Arguments

x: Numeric array. Values of age that should be grouped
groups: Numeric array. Values of lower boundaries of age groups
char: Logical. Should output be numeric (FALSE) or character (TRUE)? By default, FALSE
below_min_val: What value to return for x < min(groups) when char = FALSE? Default is NA.

Value

If char = TRUE, a factor of the same length as x with age-group labels. Otherwise, a numeric vector of the same length as x with the lower boundaries from groups; values below the first group receive below_min_val.

Examples

groups <- c(0, 1, 5, 10, 15, 20, 24, 45, 85)
x <- 0:100
ages(x, groups, TRUE)
#>   [1] 0-1   1-4   1-4   1-4   1-4   5-9   5-9   5-9   5-9   5-9   10-14 10-14
#>  [13] 10-14 10-14 10-14 15-19 15-19 15-19 15-19 15-19 20-23 20-23 20-23 20-23
#>  [25] 24-44 24-44 24-44 24-44 24-44 24-44 24-44 24-44 24-44 24-44 24-44 24-44
#>  [37] 24-44 24-44 24-44 24-44 24-44 24-44 24-44 24-44 24-44 45-84 45-84 45-84
#>  [49] 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84
#>  [61] 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84
#>  [73] 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84 45-84
#>  [85] 45-84 85+   85+   85+   85+   85+   85+   85+   85+   85+   85+   85+  
#>  [97] 85+   85+   85+   85+   85+  
#> Levels: <0 0-1 1-4 5-9 10-14 15-19 20-23 24-44 45-84 85+