Events inter-arrival time using exprnd

Hey everyone,

I'm modeling the inter-arrival time between events to be exponentially distributed. But I'm not sure how it really works!lets say that my lambda is 0.5/min because the time interval is 2s. Now exprnd(2,1,1) generates randomly distributed numbers and the separation between events is no longer 2s! Am I using the exprnd in a wrong way? And what difference does it make exprnd(2,1,1) and exprnd(10,1,1)?

Thanks in advance.

Answer 1

[Star Strider]

It’s been a while since I suffered through queuing theory, but if I remember correctly, arrival times are modeled as a Poisson process. I would use poissrnd.