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Table 1.
Characteristics of the sub-samples: range of redshift and epoch, rest-frame spectral range, masking rate, sample size, and number of classes yielded.
| Bin index | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lower redshift | 0.40 | 0.42 | 0.44 | 0.46 | 0.48 | 0.51 | 0.53 | 0.55 | 0.58 | 0.60 | 0.63 | 0.65 | 0.68 |
| Upper redshift | 0.42 | 0.44 | 0.46 | 0.48 | 0.51 | 0.53 | 0.55 | 0.58 | 0.60 | 0.63 | 0.65 | 0.68 | 0.71 |
| Lower Epoch (Gyr) | 9.24 | 9.07 | 8.91 | 8.75 | 8.59 | 8.43 | 8.26 | 8.10 | 7.94 | 7.77 | 7.61 | 7.44 | 7.28 |
| Upper Epoch (Gyr) | 9.40 | 9.24 | 9.07 | 8.91 | 8.75 | 8.59 | 8.43 | 8.26 | 8.10 | 7.94 | 7.77 | 7.61 | 7.44 |
| Lower wavelength (Å) | 3939 | 3884 | 3829 | 3774 | 3718 | 3663 | 3608 | 3553 | 3498 | 3443 | 3388 | 3333 | 3278 |
| Upper wavelength (Å) | 6680 | 6585 | 6490 | 6395 | 6301 | 6206 | 6111 | 6016 | 5922 | 5827 | 5732 | 5637 | 5543 |
| Masking rate (%) | 42 | 41 | 52 | 42 | 45 | 47 | 43 | 49 | 55 | 44 | 53 | 44 | 45 |
| Sample size | 491 | 1134 | 1579 | 2084 | 2682 | 3444 | 3119 | 3754 | 3996 | 4978 | 5504 | 4763 | 4984 |
| Number of classes | 20 | 28 | 30 | 8 | 27 | 31 | 33 | 34 | 27 | 29 | 40 | 40 | 40 |
| KNN vote fraction | 0.7 | 0.9 | 1 | 0.72 | 0.74 | 0.85 | 0.92 | 0.83 | 0.86 | 0.87 | 0.74 | 0.71 | 0.75 |
| Bin index | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 |
| Lower redshift | 0.71 | 0.74 | 0.77 | 0.80 | 0.84 | 0.87 | 0.91 | 0.94 | 0.98 | 1.02 | 1.06 | 1.11 | 1.15 |
| Upper redshift | 0.74 | 0.77 | 0.80 | 0.84 | 0.87 | 0.91 | 0.94 | 0.98 | 1.02 | 1.06 | 1.11 | 1.15 | 1.2 |
| Lower Epoch (Gyr) | 7.12 | 6.95 | 6.79 | 6.62 | 6.46 | 6.30 | 6.14 | 5.97 | 5.81 | 5.65 | 5.49 | 5.33 | 5.17 |
| Upper Epoch (Gyr) | 7.28 | 7.12 | 6.95 | 6.79 | 6.62 | 6.46 | 6.30 | 6.14 | 5.97 | 5.81 | 5.65 | 5.49 | 5.33 |
| Lower wavelength (Å) | 3223 | 3168 | 3112 | 3057 | 3002 | 2947 | 2892 | 2837 | 2782 | 2727 | 2672 | 2617 | 2562 |
| Upper wavelength (Å) | 5448 | 5353 | 5258 | 5164 | 5069 | 4974 | 4879 | 4785 | 4690 | 4595 | 4500 | 4406 | 4311 |
| Masking rate (%) | 51 | 51 | 54 | 52 | 52 | 53 | 57 | 47 | 47 | 51 | 48 | 59 | 55 |
| Sample size | 4277 | 5258 | 4466 | 3947 | 3546 | 4088 | 3217 | 2346 | 1775 | 1343 | 1233 | 663 | 553 |
| Number of classes | 35 | 43 | 38 | 28 | 30 | 26 | 26 | 27 | 25 | 27 | 21 | 20 | 21 |
| KNN vote fraction | 0.9 | 0.85 | 0.83 | 0.89 | 0.82 | 0.76 | 0.81 | 0.7 | 0.88 | 0.97 | 0.68 | 0.85 | – |
Notes. The last line gives the fraction of classes in each bin for which the KNN votes are larger than 0.5 (see Sect. 4.2 for details).
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