The Maximum number of instants per trajectory: default value =1000. If a trajectory has more instants than this maximum, Polystat interpolates the properties along the trajectories in order to limit the instants to that number. It may be useful to increase this number, if you know that some trajectories are very long and have many more instants stored in the mixing file.

The Method of intersection between trajectory and slice: by default, Polystat computes all the intersections. This may cause some bias in the statistical functions, if you perform a slicing in a space direction and if there are backflows. In that case, it is mandatory to use the Find first intersection method.