Geological Image Analysis Software (GIAS) 
Nearest Neighbor (NN) Analysis Results 
	 
Input Image Name:  	 IoTestLonLats.dat 
Date of Analysis:  	 28-Nov-2011 
Ignore Boundary Points:   	 No 
	 
Statistical Summary for Actual NN Distances 
	 
Actual NN Distances 
Assumed Dataset Size (Planet) 	 Whole 
Total Number of Objects  	 172 
Number of Objects in Convex Hull  	 172 
Calculated Ellipsoidal Area (km^2) 	 4.169166e+007 
Population Density (num/km^2) 	 4.125526e-006 
Minimum NN Distance (km) 	 22.479117 
Maximum NN Distance (km) 	 724.876778 
Mean NN Distance (km) 	 258.199839 
Standard Deviation (1 sigma)  	 133.117845 
Standard Deviation (2 sigma)  	 266.235689 
Skewness 	 0.693605 
Kurtosis 	 0.413384 
	 
Statistical Summary for Expected  NN Distances 
 
	 Poisson (Random)    
Expected Mean NN Distance 	 246.167294  
R  	 1.048880   
Ideal R  	 1.002400   
R Positive Threshold at 1 sigma  	 1.042800   
R Positive Threshold at 2 sigma  	 1.083200   
R Hegative Threshold at 1 sigma  	 0.962000   
R Negative Threshold at 2 sigma  	 0.921600   
Implication  	 Random (+1std < R < +2std)   
C  	 1.226372   
Ideal C  	 0.057000   
C Positive Threshold at 1 sigma  	 1.075700   
C Positive Threshold at 2 sigma  	 2.094400   
C Hegative Threshold at 1 sigma  	 -0.961700   
C Negative Threshold at 2 sigma  	 -1.980400   
Implication  	 Significant (+1std < c < +2std)   
	 
Detailed Results 
	 
Object Identification Number 	 Centroid x Coordinate 	 Centroid y Coordinate 	 Nearest Neightbor Distance 	 Nearest Neightbor Object ID Number 
1 	 2.700000 	 0.500000 	 250.189702 	 170 
 2 	 4.900000 	 -64.400000 	 520.392048 	 166 
 3 	 6.800000 	 -31.400000 	 485.356767 	 13 
 4 	 11.000000 	 -11.000000 	 94.879101 	 6 
 5 	 13.300000 	 -2.800000 	 175.065324 	 8 
 6 	 14.000000 	 -11.500000 	 94.879101 	 4 
 7 	 14.000000 	 31.000000 	 724.876778 	 168 
 8 	 16.000000 	 2.000000 	 162.044822 	 10 
 9 	 19.000000 	 -6.000000 	 203.384794 	 11 
 10 	 21.000000 	 1.000000 	 89.914757 	 11 
 11 	 23.000000 	 -1.000000 	 89.914757 	 10 
 12 	 23.000000 	 5.000000 	 142.126564 	 10 
 13 	 24.500000 	 -35.300000 	 485.356767 	 3 
 14 	 27.000000 	 -9.000000 	 229.342620 	 18 
 15 	 27.900000 	 -16.500000 	 236.154090 	 17 
 16 	 30.000000 	 69.000000 	 492.399255 	 25 
 17 	 34.000000 	 -12.000000 	 158.952371 	 18 
 18 	 34.000000 	 -7.000000 	 158.952371 	 17 
 19 	 38.000000 	 -16.000000 	 177.161560 	 17 
 20 	 41.000000 	 46.000000 	 451.773083 	 22 
 21 	 42.500000 	 -3.000000 	 297.662028 	 18 
 22 	 51.000000 	 34.000000 	 451.773083 	 20 
 23 	 59.000000 	 11.000000 	 566.250699 	 29 
 24 	 60.000000 	 -48.000000 	 200.127633 	 27 
 25 	 60.000000 	 60.000000 	 492.399255 	 16 
 26 	 63.600000 	 -9.800000 	 548.460346 	 29 
 27 	 69.400000 	 -48.900000 	 200.127633 	 24 
 28 	 74.900000 	 40.500000 	 150.671890 	 30 
 29 	 75.100000 	 3.100000 	 247.289102 	 31 
 30 	 79.000000 	 37.000000 	 150.671890 	 28 
 31 	 79.800000 	 -3.100000 	 247.289102 	 29 
 32 	 87.000000 	 21.000000 	 182.985205 	 35 
 33 	 87.500000 	 -18.600000 	 308.381340 	 34 
 34 	 87.600000 	 -28.300000 	 308.381340 	 33 
 35 	 89.100000 	 15.600000 	 182.985205 	 32 
 36 	 90.700000 	 43.900000 	 211.799948 	 37 
 37 	 91.900000 	 37.300000 	 211.799948 	 36 
 38 	 96.700000 	 5.800000 	 372.611340 	 39 
 39 	 97.400000 	 -5.900000 	 295.799680 	 40 
 40 	 97.700000 	 -15.200000 	 295.799680 	 39 
 41 	 100.700000 	 -39.000000 	 224.647231 	 45 
 42 	 100.900000 	 -53.600000 	 252.768172 	 47 
 43 	 103.800000 	 20.300000 	 66.346815 	 44 
 44 	 106.000000 	 20.000000 	 66.346815 	 43 
 45 	 108.000000 	 -35.000000 	 224.647231 	 41 
 46 	 108.000000 	 10.800000 	 298.810299 	 44 
 47 	 108.100000 	 -47.100000 	 252.768172 	 42 
 48 	 108.300000 	 -69.100000 	 504.630333 	 42 
 49 	 109.000000 	 24.000000 	 154.869208 	 44 
 50 	 115.900000 	 31.000000 	 205.633146 	 53 
 51 	 116.300000 	 23.200000 	 214.150448 	 49 
 52 	 117.900000 	 59.500000 	 50.883804 	 56 
 53 	 118.500000 	 37.100000 	 92.225872 	 54 
 54 	 118.600000 	 40.000000 	 92.225872 	 53 
 55 	 120.000000 	 -3.000000 	 358.176934 	 61 
 56 	 120.400000 	 60.500000 	 50.883804 	 52 
 57 	 123.000000 	 61.500000 	 51.144443 	 56 
 58 	 123.800000 	 16.200000 	 244.496055 	 63 
 59 	 125.000000 	 67.000000 	 71.131160 	 60 
 60 	 126.000000 	 64.800000 	 71.131160 	 59 
 61 	 128.000000 	 -11.000000 	 228.526366 	 64 
 62 	 129.000000 	 -34.000000 	 440.823123 	 71 
 63 	 131.100000 	 19.500000 	 215.264612 	 68 
 64 	 132.000000 	 -5.000000 	 228.526366 	 61 
 65 	 132.000000 	 9.300000 	 104.357906 	 66 
 66 	 133.900000 	 12.000000 	 104.357906 	 65 
 67 	 135.000000 	 39.000000 	 133.048792 	 69 
 68 	 136.400000 	 15.000000 	 90.559207 	 70 
 69 	 137.200000 	 35.200000 	 133.048792 	 67 
 70 	 139.300000 	 14.500000 	 90.559207 	 68 
 71 	 140.000000 	 -45.000000 	 22.479117 	 72 
 72 	 141.000000 	 -45.000000 	 22.479117 	 71 
 73 	 141.000000 	 -19.000000 	 283.748218 	 77 
 74 	 144.000000 	 66.000000 	 240.377267 	 60 
 75 	 145.600000 	 22.000000 	 158.167647 	 80 
 76 	 145.800000 	 0.600000 	 228.902902 	 83 
 77 	 147.000000 	 -26.000000 	 283.748218 	 73 
 78 	 147.000000 	 32.000000 	 278.558560 	 69 
 79 	 150.000000 	 14.000000 	 233.663741 	 80 
 80 	 150.900000 	 21.300000 	 158.167647 	 75 
 81 	 151.000000 	 -36.000000 	 40.992900 	 82 
 82 	 152.000000 	 -35.000000 	 40.992900 	 81 
 83 	 153.000000 	 0.500000 	 228.902902 	 76 
 84 	 157.200000 	 11.800000 	 233.797316 	 79 
 85 	 159.200000 	 -26.900000 	 232.411787 	 86 
 86 	 161.500000 	 -19.900000 	 232.411787 	 85 
 87 	 163.300000 	 0.000000 	 199.096544 	 89 
 88 	 168.600000 	 -65.900000 	 598.980064 	 98 
 89 	 168.800000 	 3.000000 	 199.096544 	 87 
 90 	 174.000000 	 18.000000 	 377.007044 	 93 
 91 	 175.000000 	 -42.000000 	 517.692497 	 98 
 92 	 178.000000 	 -2.000000 	 332.783844 	 89 
 93 	 184.300000 	 25.000000 	 59.235555 	 94 
 94 	 186.200000 	 24.300000 	 59.235555 	 93 
 95 	 187.000000 	 -20.700000 	 573.241591 	 100 
 96 	 192.000000 	 28.100000 	 204.798235 	 94 
 97 	 192.600000 	 40.900000 	 294.377929 	 102 
 98 	 194.000000 	 -52.000000 	 176.036995 	 101 
 99 	 199.000000 	 32.000000 	 228.986471 	 96 
 100 	 199.200000 	 -35.200000 	 360.596998 	 105 
 101 	 203.000000 	 -52.000000 	 110.944397 	 103 
 102 	 204.000000 	 38.000000 	 230.856292 	 99 
 103 	 206.000000 	 -55.000000 	 110.944397 	 101 
 104 	 209.000000 	 28.000000 	 303.080680 	 99 
 105 	 209.900000 	 -28.400000 	 360.596998 	 100 
 106 	 215.000000 	 65.000000 	 445.199311 	 123 
 107 	 217.000000 	 -0.900000 	 292.626050 	 108 
 108 	 217.300000 	 -10.100000 	 292.626050 	 107 
 109 	 217.500000 	 17.200000 	 170.834615 	 111 
 110 	 218.400000 	 -50.000000 	 287.210056 	 103 
 111 	 219.300000 	 22.300000 	 170.834615 	 109 
 112 	 222.000000 	 31.000000 	 286.984467 	 111 
 113 	 224.000000 	 -24.000000 	 264.043305 	 114 
 114 	 225.500000 	 -32.200000 	 245.609706 	 115 
 115 	 233.000000 	 -28.000000 	 245.609706 	 114 
 116 	 233.000000 	 -4.000000 	 301.228797 	 118 
 117 	 236.000000 	 -49.000000 	 356.522154 	 124 
 118 	 236.000000 	 -13.000000 	 250.309199 	 122 
 119 	 240.000000 	 22.000000 	 319.264739 	 120 
 120 	 242.300000 	 12.200000 	 319.264739 	 119 
 121 	 242.500000 	 -35.600000 	 352.145381 	 115 
 122 	 244.000000 	 -12.000000 	 250.309199 	 118 
 123 	 249.900000 	 68.500000 	 445.199311 	 106 
 124 	 251.100000 	 -55.400000 	 287.809334 	 130 
 125 	 255.700000 	 -18.400000 	 412.354531 	 122 
 126 	 261.000000 	 37.000000 	 429.640428 	 129 
 127 	 264.000000 	 53.000000 	 304.933850 	 136 
 128 	 265.500000 	 -48.000000 	 309.119478 	 131 
 129 	 265.700000 	 24.100000 	 319.072611 	 132 
 130 	 266.700000 	 -58.600000 	 243.486779 	 137 
 131 	 271.800000 	 -39.400000 	 309.119478 	 128 
 132 	 275.000000 	 19.000000 	 319.072611 	 129 
 133 	 277.000000 	 -7.000000 	 193.292557 	 134 
 134 	 278.000000 	 -13.000000 	 193.292557 	 133 
 135 	 278.600000 	 31.100000 	 398.308632 	 132 
 136 	 278.600000 	 49.900000 	 304.933850 	 127 
 137 	 281.000000 	 -61.400000 	 165.756888 	 140 
 138 	 287.700000 	 -40.400000 	 388.551186 	 131 
 139 	 290.100000 	 1.900000 	 502.784158 	 133 
 140 	 291.900000 	 -62.300000 	 165.756888 	 137 
 141 	 294.000000 	 75.100000 	 470.600655 	 123 
 142 	 294.600000 	 -15.000000 	 336.849681 	 147 
 143 	 301.500000 	 55.100000 	 235.749756 	 151 
 144 	 304.000000 	 -32.500000 	 283.852619 	 145 
 145 	 304.900000 	 -41.400000 	 250.217079 	 150 
 146 	 305.000000 	 -61.000000 	 163.143549 	 152 
 147 	 305.500000 	 -16.500000 	 336.849681 	 142 
 148 	 306.200000 	 36.300000 	 398.436812 	 156 
 149 	 308.800000 	 12.700000 	 543.532406 	 157 
 150 	 310.500000 	 -48.200000 	 155.056139 	 154 
 151 	 311.000000 	 50.400000 	 235.749756 	 143 
 152 	 311.500000 	 -57.100000 	 163.143549 	 146 
 153 	 314.900000 	 -9.400000 	 325.412254 	 158 
 154 	 317.800000 	 -48.000000 	 155.056139 	 150 
 155 	 320.000000 	 -78.000000 	 561.439844 	 146 
 156 	 321.600000 	 35.200000 	 121.280521 	 159 
 157 	 322.100000 	 1.800000 	 335.783331 	 158 
 158 	 325.200000 	 -8.300000 	 260.141599 	 162 
 159 	 326.000000 	 34.000000 	 121.280521 	 156 
 160 	 326.300000 	 -45.600000 	 199.956488 	 154 
 161 	 327.700000 	 28.300000 	 187.005270 	 159 
 162 	 330.000000 	 -15.000000 	 260.141599 	 158 
 163 	 332.000000 	 16.600000 	 216.630770 	 164 
 164 	 336.000000 	 11.000000 	 216.630770 	 163 
 165 	 337.100000 	 44.900000 	 439.938321 	 159 
 166 	 343.200000 	 -52.400000 	 298.604207 	 169 
 167 	 350.400000 	 3.100000 	 188.673968 	 170 
 168 	 350.400000 	 22.200000 	 397.851424 	 172 
 169 	 352.000000 	 -45.000000 	 298.604207 	 166 
 170 	 356.100000 	 4.800000 	 188.673968 	 167 
 171 	 356.500000 	 -10.600000 	 403.663499 	 1 
 172 	 358.000000 	 12.000000 	 236.551890 	 170 
 