Fig. 7
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Distribution of the difference between the spectroscopic redshift (zgroundtruth) provided by SDSS spectroscopy and the photometric redshift predicted in our work (zprediCted). The histogram is colour-coded by spec-troscopic label: orange for stars, blue for QSOs, and green for galaxies. The black dashed lines delimit the area where the difference between redshifts is 1 or −1.
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