This movie represents the dynamical evolution of the contacts during the first day of a deployment of the SocioPatterns sensing platform, see sociopatterns.org. Each dot represents an individual, and an edge is drawn when a contact between two individuals occurs. Only contacts lasting at least 40 s are retained. Each frame corresponds to an aggregation of the contact network over a time window of 20 mn, and successive frames correspond to aggregation time windows shifted by 10 s; the movie is then built using 20 frames per second. Nodes are disposed in circles corresponding to the various classes, with the teacher at the center, and color-coded according to the grade (teachers are shown in black).

This movie was provided as supplementary information with this scientific paper: plosone.org/article/info:doi/10.1371/journal.pone.0023176. The network visualisation was created by Alain Barrat & André Panisson using Gephi, see gephi.org. The cumulative social network of interaction is available in Gephi's
GEXF format on sociopatterns.org/datasets/primary-school-cumulative-networks/.

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