Table 9.
Mean and median number of pixels of the ARs in each cluster under the Hellinger clustering schemes. Cluster 1 contains the larger sunspots for all groups when using NMF and for some of the groups when using SVD.
| Number of pixels |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
α
|
β
|
βγ
|
βγδ
|
All |
||||||
| Cluster | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 |
| Mean, SVD Hellinger | 278 | 260 | 582 | 270 | 823 | 577 | 1234 | 1354 | 756 | 422 |
| Mean, NMF Hellinger | 384 | 183 | 788 | 156 | 847 | 515 | 1418 | 880 | 882 | 283 |
| Median, SVD Hellinger | 148 | 128 | 477 | 70 | 612 | 472 | 1012 | 1172 | 588 | 174 |
| Median, NMF Hellinger | 265 | 121 | 580 | 56 | 631 | 393 | 1157 | 665 | 677 | 105 |
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