netlogo - Behavior Space Reporters once per time period -

i want record data while running behavior space once within given period, e.g. once per 1000 ticks. see behavior space can call reporters once per tick or once @ end of simulation run. however, not want record once per tick, because produces data, don't want have data @ end of simulation. cannot change simulation time represented tick because of numerical stability. tried putting code behavior space, i.e. if ticks mod 1000 = 0 [reporter]

but gave error ("syntax, expected reporter") when started experiment. there way around issue, or stuck gathering or little data? thx.

in "go commands", put repeat 1000 [ go ] instead of go. way, each "step" 1000 ticks, recording data each step records once every 1000 ticks.