APOGEE comparison. Top: differences between our computed and adopted atmospheric parameters and the APOGEE results as a function of spectroscopic T_eff. The color-coding expresses the S/N of the targets. The temperatures and metallicities were directly derived from spectroscopy, while the log g were calculated using the scaling relation of Eq. (1). Bottom: Kernel density estimation of the three deltas together with their mean differences and dispersions.