Distribution of the Spearman rank correlation coefficients between and fitness.

<p>The analysis in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003111#pcbi.1003111-Edlund1" target="_blank">[18]</a> was repeated several times to obtain Spearman rank correlation coefficients. The distribution for the 126 correlation coefficients shows a very broad spectrum with a mean at 0.69 and a variance of 0.24. The red arrow indicates a value of 0.94 obtained in <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1003111#pcbi.1003111-Edlund1" target="_blank">[18]</a> over 64 evolutionary histories, while the green arrow points to the value of 0.79 obtained for the current 126 histories in the same manner. Error bars are Poisson errors due to binning.