Distribution of GCs on the derived binary fraction (f_der(q > 0.5), f_der(tot)^mc, and f_der(tot)^mf, from the left to right columns) and Fe5335 (in Å) plane. The rows 1–3 are for the resolutions of FWHM = 5 Å, 15 Å and FWHM_Lick/IDS. In each panel, the color of symbols is for metallicity: blue, green, black, cyan, and red are for the ranges of [Fe/H] = [−2.5, −2.0), [−2.0, −1.5), [−1.5, −1.0), [−1.0, −0.5), and [−0.5, 0.0), the shape of symbols is for its spectrum region: circle, rectangle, diamond, and pentagon correspond to those in the V10 (P02), U17, S05-1, and S05-2 observations, and the numbers to the right of symbols is the GC number.