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. 2017 Feb 22;284(1849):20162602. doi: 10.1098/rspb.2016.2602

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© 2017 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 4. — Scaling of group sizes within the flock dendrogram. Panel (a) shows the summed transition probabilities reaching group size α computed for 24 different temporally close samples of dendrograms gathered from regions of 65 consecutive frames in all four time slices. Panel (b) shows a linear fit to the highest integer α such that the summed transition probabilities are <0.9, R = −0.540670, p = 0.006375; the fit produced residuals with an estimated mean μ = 1.421085 × 10⁻¹⁴ and an Anderson–Darling test for normality was performed which yielded a statistic of 0.268692, (null hypothesis of normality).

Inline graphic — Scaling of group sizes within the flock dendrogram. Panel (a) shows the summed transition probabilities reaching group size α computed for 24 different temporally close samples of dendrograms gathered from regions of 65 consecutive frames in all four time slices. Panel (b) shows a linear fit to the highest integer α such that the summed transition probabilities are <0.9, R = −0.540670, p = 0.006375; the fit produced residuals with an estimated mean μ = 1.421085 × 10⁻¹⁴ and an Anderson–Darling test for normality was performed which yielded a statistic of 0.268692, (null hypothesis of normality).