Analysis of the periodic patterns of data set 3.

<p>In a row, the system approaches the bifurcation point from left to right column (as in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0092097#pone-0092097-g001" target="_blank">Fig. 1</a>). First row: -spectrum. Gray areas corresponds to 95% confidence interval obtained using 200 simulations of a null model (i.e. data sets of same size generated by reshuffling the original matrix). Second row: histogram of the values of the data set (or pixels of the image).