Lead time from one date to another

lt(from, to, neg = FALSE)

Arguments

from, to	start and stop dates (in formats that can be recognized as RCC dates).
neg	except negative lead times (set to `NA` if `neg = FALSE`)?

Value

Numeric vector

Examples

lt("2017-02-10", "2017-02-16") # 6
#> [1] 6
lt("2017-02-16", "2017-02-10") # negative lead times ignored by default
#> [1] NA
lt("2017-02-16", "2017-02-10", TRUE) # -6
#> [1] -6