The scheduler runs a statement periodically. This might be needed for stateful functions that require regular periodic updates

schedule <name> <statement> <period>

Run the code in statement periodically, at the frequency of period times per bar

Parameter Description Range
name An identifier Any string
statement A function Any function
period the number of times per bar to run the code >0

To print “hi” 3 times per bar:

(schedule "test" (print "hi") 3)

unschedule <name>

Remove a function from the scheduler

Parameter Description Range
name An identifier Any string 
(unschedule "test")