Differences of LSP3 spectroscopic estimates of ﹩{T}_{\mathrm{eff}}﹩ and the photometric values deduced from the color–metallicity–temperature relations of Huang et al. (2015), plotted against the photometric ﹩{T}_{\mathrm{eff}}﹩ (left) and the spectroscopic (i.e., LSP3) [Fe/H] (middle). The upper panels show the LSP3 results based on the weighted-mean method, while the lower panels show those with the LSP3 KPCA method. Histograms of the differences, as well as Gaussian fits to the histograms, are shown in the right panels. Means and 1σ dispersions of the Gaussians are marked in the plots.