Age estimate relative errors as a function of the true mass (left panel), relative age (central panel), and metallicity [Fe/H] (right panel) of the star. The blue long dashed lines mark the error medians. The red solid line is the 1σ error envelope, while the red dashed one marks the position of the 2σ envelope (see text). A positive relative error indicates that the reconstructed age of the star is overestimated with respect to the true one.
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