Comparison of SQUEzE performance (f₁ score) when we feed different columns to the random forests. We compare SQUEzE default choice, i.e. only feeding the metrics with the cases where we also feed it the trial redshift, the r-band magnitude, or both (our fiducial choice). The left (right) panel shows the performance for the low (high) redshift quasars. The fiducial model is the best performing.