Correlation matrix of the bolometric LC, spectral, and colour parameters used in the current study. The Pearson correlation coefficients are presented in the upper triangle, while in the lower triangle the correlation coefficients are colour-coded. The diagonal middle line shows the name of the parameters used: pd, optd, Cd, M_bol, end, M_bol, tail, s₁, s₂, s₃, (g−r) at 15 and 70 days after explosion, line velocity of H_α, H_β, Fe IIλ5169, pEW(H_α) of absorption component, pEW(H_α) of emission component, pEW(H_β), pEW(Fe IIλ4924), pEW(Fe IIλ5018), pEW(Fe IIλ5169), and a/e.