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Table 2
Summary table of the spectral quality flag statistics for the master sample.
| QF | N# | % | |
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| Good | 6829 | 77% | |
| (no Seyfert I) | 6784 | 99.4% | |
| (Seyfert I) | 45 | 0.6% | |
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| Rejected | 2148 | 23% | |
| Poor splice | 354 | 4% | |
| Fringing | 267 | 3% | |
| Poor flux calibration | 1537 | 17% | |
Notes. Roughly three quarters of the spectra have successfully passed the quality control, while a quarter have been rejected because of instrument residuals.
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