C        30 0.4189061 -0.097877230      18.90 7.741017e-05
#&gt; 2             B        30 0.4502398 -0.066543453      12.85 1.328916e-05
#&gt; 5             E        30 0.5664308  0.049647543       9.65 4.854874e-06
#&gt; 1             A        30 0.5105626 -0.006220664       1.20 1.591829e-05
#&gt;   m.null.estimate Pval.randomization Significant (%)
#&gt; 4       0.5366828                0.0             100
#&gt; 3       0.4845104                0.0             100
#&gt; 2       0.5469125                