businessDay

businessDay(X, [offset], [n=1])

X is a scalar/vector of data type DATE, DATEHOUR, DATETIME, TIMESTAMP or NANOTIMESTAMP.

offset (optional) is a scalar of the same data type as X. It must be no greater than the minimum value of X. The default value is the minimum value of X.

n (optional) is a positive integer. The default value is 1.

If X is a business day (Monday to Friday), return date(X). Otherwise, return the most recent business day.

If parameter offset is specified, the result is updated every n business days. Parameter offset works only if parameter n>1.

businessDay(2019.01.06);
// output
2019.01.04

businessDay(2019.01.04);
// output
2019.01.04

date=2019.01.06 + 1..10
businessDay = businessDay(date)
businessDay2 = businessDay(date,min(date),2)
table(date, businessDay, businessDay2);