DCF curves and flux–flux plots comparing the 3 mm radio and γ-ray light curves in 2015−2019 for the monthly γ-ray fluxes (top panels) and the weekly γ-ray fluxes (bottom panels). Orange curves in the left panels indicate the best Gaussian fits to the DCF curves. For the flux-flux plots (right panels), the ALMA light curve has been shifted in time by the delays found from the Gaussian fits. The Pearson correlation coefficients (r_p) and corresponding p-values (p_p) are shown in the flux-flux plots.