>sensi.estimates</code>: Coefficients, aic and the optimised value of the phylogenetic 
parameter (e.g. <code>lambda</code>) for each regression using a value in the interval of variation and 
a different phylogenetic tree.</p>
<p><code>N.obs</code>: Size of the dataset after matching it with tree tips and removing NA's.</p>
<p><code>stats</code>: Main statistics for model parameters.<code>CI_low</code> and <code>CI_high</code> are the lower 
and upper limits of the 95<!-- % confidence interval. --></p>
<p>