Sorry Jakob, The problem fixed by using <random value="True"/>
Bests, Reihaneh On Fri, Apr 9, 2021 at 12:00 PM reihaneh koohi <[email protected]> wrote: > Tons of thanks for the response. > > I used the --random, but the results did not change. So, sth is wrong for > me. > This is the way that I use it: > > In od2trips.config.xml I add the line <random/> after the <configuration> > line. > > That is very kind of you if you can help me, > Bests, > Reihaneh > > > > On Thu, Apr 8, 2021 at 10:56 AM Jakob Erdmann <[email protected]> > wrote: > >> Hello, >> To get different outputs on each call use option --random or option >> --seed (see >> https://sumo.dlr.de/docs/Simulation/Randomness.html#random_number_generation_rng >> ) >> The depart times are drawn uniformly from the interval by default. You >> may also set option **--spread.uniform** to have the departs equidistant in >> time. >> The ordering of matrix cells has an impact on the ordering of the random >> number generator calls so you will get different results when you change >> the order. However, changing the seed gives more freedom here. >> >> regards, >> Jakob >> >> Am Mi., 7. Apr. 2021 um 19:42 Uhr schrieb reihaneh koohi < >> [email protected]>: >> >>> Dear Sumo Users, >>> >>> I find that the results of making trips from O/D matrix (as far as O/D >>> matrix does not change) always are the same. So, it seems that the function >>> of making trips is not random. >>> >>> Is there any documentation about how the Sumo generates trips from O/D >>> matrix? I want to know information such as >>> - The time that a vehicle is inserted into the network (Is it randomly >>> selected from the time interval, or using uniform distribution or ...) >>> - How to select a trip from O/D matrix? (randomly selected or defining >>> the trip from top to bottom of O/D matrix (So the order of writing TAZ in >>> O/D is important)) >>> >>> I already read these documentations, and they are not enough: >>> >>> https://sumo.dlr.de/docs/od2trips.html >>> https://sumo.dlr.de/docs/Demand/Importing_O/D_Matrices.html >>> >>> Bests, >>> Reihaneh >>> >>> >>> _______________________________________________ >>> sumo-user mailing list >>> [email protected] >>> To unsubscribe from this list, visit >>> https://www.eclipse.org/mailman/listinfo/sumo-user >>> >> _______________________________________________ >> sumo-user mailing list >> [email protected] >> To unsubscribe from this list, visit >> https://www.eclipse.org/mailman/listinfo/sumo-user >> >
_______________________________________________ sumo-user mailing list [email protected] To unsubscribe from this list, visit https://www.eclipse.org/mailman/listinfo/sumo-user
