Top and bottom 15 most stable features.

<p>This ranking represents the consensus among all 12 datasets as given by the first principal component () of a Principal Component Analysis run on all polymorphic ranks, explaining of the variance and representing the agreement. See <b><a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0045198#pone.0045198.s001" target="_blank">Materials S1</a></b> for details and WALS <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0045198#pone.0045198-Haspelmath2" target="_blank">[31]</a>, <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0045198#pone.0045198-Dryer1" target="_blank">[32]</a> for the description of the features.