6.8     6.5     6.7  
#&gt; COCA11  COCA12  COCA13  COCA14  COCA15  COCA16  COCA17  COCA18  COCA19  COCA20  
#&gt;    5.8     3.5     2.7     2.0     2.5    -0.1    -2.1    -2.9    -2.9    -3.5  
#&gt; COCA21  COCA22  COCA23  COCA24  COCA25  COCA26  COCA27  COCA28  COCA29  
#&gt;   -4.2    -4.3    -4.8    -5.7    -8.1   -24.6   -29.2   -37.9   -39.6  </div><div class='input'><span class='co'>## so 2 axes are sufficient</span>
<span class='co'>## permutation test to assess significant PLS components - takes 