Table 5.
Angular analysis of alignment during urination in all males (pooled data without dog M07 and mean vectors of all males sorted into three categories according to the relative changes of magnetic field declination)
| |
Pooled raw data |
Means per dog (n ≥ 5) |
||||
|---|---|---|---|---|---|---|
| Declination rate | 0% | 0.1-2% | >2% | 0% | 0.1-2% | >2% |
| Number of observations |
491 |
256 |
655 |
22 |
15 |
22 |
| Mean vector (μ) |
293° |
12° |
84° |
291° |
355° |
195° |
| Length of mean vector (r) |
0.129 |
0.08 |
0.006 |
0.367 |
0.349 |
0.07° |
| Circular standard deviation |
116° |
129° |
182° |
81° |
83° |
132° |
| 95% Conf. interval (-/+) for μ |
265°-321° |
310°-74° |
- |
246°-335° |
290°-61° |
315°-76° |
| 99% Conf. interval (-/+) for μ |
256°-329° |
290°-94° |
- |
232°-349° |
270°-81° |
239°-151° |
| Rayleigh test (Z) |
8.17 |
1.619 |
0.028 |
2.959 |
1.828 |
0.109 |
| Rayleigh test (p) |
2.83⋅10-4 |
0.198 |
0.973 |
0.05 |
0.162 |
0.899 |
| Rao’s spacing test (U) |
260.285 |
281.656 |
283.053 |
148.258 |
147.139 |
127.188 |
| Rao’s spacing test (p) | <0.01 | <0.01 | <0.01 | >0.1 | >0.1 | >0.5 |