Define a Time Range

Define a time range from a character string in suitable format. The format is \(start\)_\(end\) where \(start\) and \(end\) define the beginning and the end of the time range.

Usage

timeRange(str)

Arguments

str

A character string in suitable format, see Examples.

Value

An object with class "Date" and length 2 containing the beginning and the end. The time-range or "period" is formed by all dates which are >= the beginning and are < the end.

Examples

timeRange("2020_2222")
#> [1] "2020-01-01" "2223-01-01"
## error: and underscore '_' is needed! 
try(timeRange("2020-2222"))
#> Error in timeRange("2020-2222") : 
#>   'period' must be "beginning_end" where 'beg' and 'end' are years or dates
timeRange("2020-01-01_2222")
#> [1] "2020-01-01" "2223-01-01"
timeRange("2020-01-01_2222-09-21")
#> [1] "2020-01-01" "2222-09-22"