Correlation of the moments/activity indices with each other for all CARMENES spectra of EV Lac. Red rectangles indicate positive correlations, and blue rectangles indicate anti-correlations. Only strong correlations with a high significance are considered. We only consider Hα for the Parameter 4 correlations, but we compare it to all activity lines. The lack of correlations for M0–M0 and M3–M3 moments arises because there is only one activity parameter with these moments.