Comparison of the atmospheric parameters determined by us (ordinates of the upper panels) with those from Valdes (abscissas). 818 FGK stars are plotted and 46 temperature, eight log g and five [Fe/H] outliers are not displayed. In the lower panels, we plot the differences between the values from ULySS and the literature (here Valdes). The green lines in the upper panels are the 1 to 1 ratios. In the lower panels, the continuous green lines mark the mean bias, and the dashed lines are the 1-σ deviation (computed after the rejection of the T_eff outliers). The same convention is used from Fig. A.1 to C.4 for other literature sources.