Probability Density Function (PDF) of the mean sentiment of polarized users having commented at least twice, where −1 corresponds to negative sentiment, 0 to neutral and 1 to positive.
Zollo, F. et al. 2015. “Emotional Dynamics in the Age of Misinformation.” PLoS ONE 10(9):e138740. http://dx.doi.org/10.1371/journal.pone.0138740