Arrival Schedules

Just Like Server Schedules, can we incorporate Arrival Schedules ( for example - Peak Hours at restaurant, traffic etc). We can do this by providing another attribute to params:-

Arrival Schedules : ['schedule']
schedule=[[Distribution-1,10],[Distribution-2,40],[Distribution-3,100]]

where ‘Distribution-k’ represents Arrival Distributions ,1<=k<=3 and 10,40,100 are the time till which that distribution is followed. 0-10 -Distribution-1 10-40 Distribution-2 40-100 Distribution-3

[drvinceknight]

Yes that’s good. So should I keep this open as a suggestion or close it.

I think it can be closed. 👍 (It can always be reopened if need be.)

[geraintpalmer]

1. OK, if you intend for it to cycle you can use modulo arithmetic:

def arrival_schedules(t):
    if t % 100 <= 10:
        return random.expovariate(0.4)
    if t  % 100 < 40:
        return random.expovariate(0.2)
    if t % 100 < 100:
        return random.expovariate(0.3)

and since t % 100 cannot be greater than 100, we have:

def arrival_schedules(t):
    if t % 100 <= 10:
        return random.expovariate(0.4)
    if t  % 100 < 40:
        return random.expovariate(0.2)
   return random.expovariate(0.3)

1. 2 changes occurred in version 1.1.0:

• ciw.create_network is slightly refactored, no user facing changes however.

• Input for server schedules have been refactored. We now define the schedule inside the Number_of_servers list, rather than give that a string, and define the schedule outside. The latest documentation is up to date with version 1.1.0 and will explain this change: http://ciw.readthedocs.io/en/latest/Guides/server_schedule.html

I hope that helps!