Table 2.
Spearman rank correlation coefficient ρS of the OCLs per method and per pair of inspectors.
| Method | ρS(A–B) | ρS(B–C) | ρS(A–C) |
|---|---|---|---|
| Spectrum 300 pc | 0.85 ± 0.04 | 0.81 ± 0.06 | 0.75 ± 0.07 |
| Spectrum 2 kpc | 0.77 ± 0.06 | 0.73 ± 0.06 | 0.67 ± 0.06 |
| pv–diagram | 0.90 ± 0.06 | 0.73 ± 0.06 | 0.75 ± 0.06 |
| Line-wing map | 0.93 ± 0.06 | 0.87 ± 0.06 | 0.77 ± 0.06 |
Notes. Spearman rank correlation coefficient ρS for the different combinations of OCLs assigned by inspectors A, B, C to each galaxy and each method. Overall there is good agreement between the different inspectors. Uncertainties are obtained by perturbing the values by their errors, see text for more details.
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