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 >
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