Research Article

Testing Spatial Symmetry Using Contingency Tables Based on Nearest Neighbor Relations

Table 14

The (reduced) -symmetry contingency table for the Lansing Woods data. The values in the parentheses are relative frequencies of the cells in each row with respect to the row sums.

Number of times a point serving as a NNTotal
0 1 ≥2

Classes
 Black oak 37 (.27) 67 (.50) 31 (.23) 135
 Maple 113 (.22) 259 (.50) 142 (.28) 514
 White oak 143 (.32) 220 (.49) 85 (.19) 448

Total 293 (.27) 546 (.50) 258 (.24) 1097