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Table 2

Results for the MIXED experiment (see text).

Ref. |bias| σ NMAD rms | biasnorm | σnorm NMADnorm RMSnorm

Overall 0.000030 0.028 0.0196 0.028 0.000574 0.023 0.0172 0.023
[0,z1] 0.008259 0.022 0.0179 0.023 0.007895 0.020 0.0167 0.022
]z1,z2] 0.008975 0.023 0.0195 0.025 0.007828 0.020 0.0171 0.022
]z2,z3] 0.006664 0.035 0.0234 0.035 0.005640 0.028 0.0188 0.029
>z3 0.008568 0.037 0.0255 0.038 0.005705 0.024 0.0177 0.025
[0.05,0.6] 0.002224 0.026 0.0188 0.026 0.001643 0.022 0.0163 0.022
Laurino et al. 0.015 0.015 0.016 0.021 0.014 0.013 0.013 0.019

| Δz | | Δz | | Δz | | Δznorm | | Δznorm | | Δznorm | Skewness Kurtosis
>0.15 >1σ >2σ >0.15 >1σ >2σ

Overall 0.12% 22.61% 5.16% 0.04% 23.57% 5.43% 1.37 × 10-16 1.8
[0,z1] 0.03% 27.30% 6.56% 0.02% 27.02% 6.62% 9.73 × 10-17 1.8
]z1,z2] 0.02% 28.13% 7.16% 0.01% 28.28% 7.20% 1.23 × 10-15 1.8
]z2,z3] 0.36% 22.51% 6.57% 0.08% 22.54% 6.67% 8.03 × 10-16 1.8
> z 3 0.50% 20.56% 4.17% 0.16% 22.02% 4.34% −1.13 × 10-15 1.8
[0.05,0.6] 0.11% 22.84% 5.44% 0.03% 23.62% 5.51% 2.24 × 10-15 1.8

Notes. The table is split in two parts. In the upper half we provide standard statistical indicators (see text for an explanation) used to evaluate the performances of photo-z methods. We also include the same indicators for Laurino et al. (2011). In the lower half of the table, we report the fraction (in percentage) of outliers computed using a fixed threshold of 0.15, the more meaningful 1, and 2σ clipping thresholds and the values of skewness and kurtosis of the σznorm) distributions. The redshift range starting from z = 0 up to the redshift z1 = 0.115 includes 50% of the objects in the test set; the second redshift bin, using the range from z1 = 0.115 to z2 = 0.177, corresponds to an additional 25% of the sample; the third bin, using the range z2 = 0.177 to z3 = 0.345, corresponds to an additional 15% and, finally, the fourth bin includes all remaining objects (redshift >z3 = 0.345). The last row reports the statistics in the redshift range [0.05,0.6] corresponding to the same range covered in Laurino et al. (2011).

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