input: [Distribution] User-defined subroutine [First numeric field] (not used) [Second numeric field] (not used)
output: (any other)
options: D I S C R E T E
options: U N I F O R M
options: N O R M A L
options: G A M M A
options: B E T A
options: L O G N O R M
options: ( a n y o t h e r )