std 
1 comps
10 comps
30 comps
50 comps
1 trees
1.085
0.303
0.190
0.126
10 trees
0.358
0.020
0.009
0.008
30 trees
0.112
0.006
0.000
0.000
50 trees
0.043
0.000
0.000
0.000
| std | 1 comps | 10 comps | 30 comps | 50 comps |
| 1 trees | 1.085 | 0.303 | 0.190 | 0.126 |
| 10 trees | 0.358 | 0.020 | 0.009 | 0.008 |
| 30 trees | 0.112 | 0.006 | 0.000 | 0.000 |
| 50 trees | 0.043 | 0.000 | 0.000 | 0.000 |