particlerate

Submitted by ehsan on Thu, 06/27/2013 - 19:37

HI all
I see doc but I dont understand what is the particlerate!or how particlerate insert particles?
in one example:
nparticles 1000 particlerate 5000 insert_every 1000
how particlerate can be biger than nparticle?
please help me

thank you