Table 1 Descriptive statistics for the accuracy error and circular statistics of the static tests with the average accuracy error (m), range of the accuracy error (m), total observations (N), mean direction (Ɵ), circular variance (Vm), and circular standard deviation (v) for the four aspect categories (N, E, S, W)
Aspect | Average accuracy error (m) | Range accuracy error (m) | Total N | Mean direction (ÆŸ) | Circular variance (Vm) | Circular standard deviation (v) |
|---|---|---|---|---|---|---|
North | 4.1 | 0.06 – 17.2 | 2611 | 24.8° (NNE) | 0.86 | 113.6º |
East | 3.85 | 0.11 – 14.5 | 1150 | 176° (S) | 0.75 | 95.9º |
South | 5.3 | 0.11 – 88.2 | 2794 | 255.6° (W) | 0.57 | 74.2º |
West | 4.52 | 0.10 – 24.9 | 1911 | 26.5° (NNE) | 0.65 | 82.8º |