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. 2019 Mar 21;14(3):e0213843. doi: 10.1371/journal.pone.0213843

Fig 4. Autocorrelation functions ρk(τ) and power spectral density Sk(f) of collective emotion.

Fig 4

ρk(τ) and Sk(f) are calculated for (A)(B) Raw emotional dynamics which shows periodic cycles, (C)(D) Emotional dynamics without periodic cycles which shows long-term memory, (E)(F) Weekly randomized dynamics which diminished correlations larger than weekly scale.