Used by ichimoku to subset a vector of dates to trading days.
tradingDays(x, holidays, ...)a vector of POSIXct date objects.
(optional) a vector, or function which outputs a vector, of dates defined as holidays. Set to NULL for a continuously-traded market.
other arguments not used by this function.
A vector of logical values: TRUE if the corresponding element of 'x' is a weekday and not a holiday, FALSE otherwise.
Or, if the parameter 'holidays' is set to NULL, a vector of TRUE values of the same length as 'x'.
New Year's Day (01-01) and Christmas Day (12-25) are defined as holidays by default if 'holidays' is not specified.
dates <- seq(from = as.POSIXct("2020-01-01"), by = "1 day", length.out = 7)
dates
#> [1] "2020-01-01 UTC" "2020-01-02 UTC" "2020-01-03 UTC" "2020-01-04 UTC"
#> [5] "2020-01-05 UTC" "2020-01-06 UTC" "2020-01-07 UTC"
tradingDays(dates)
#> [1] FALSE TRUE TRUE FALSE FALSE TRUE TRUE
tradingDays(dates, holidays = c("2020-01-02", "2020-01-03"))
#> [1] TRUE FALSE FALSE FALSE FALSE TRUE TRUE
tradingDays(dates, holidays = NULL)
#> [1] TRUE TRUE TRUE TRUE TRUE TRUE TRUE