Fig. 6From: Integrated assessment of medicinal rhubarb by combination of delayed luminescence and HPLC fingerprint with emphasized on bioactivities based quality controlCorrelation network between the chemical compounds and DL properties measured in the commercial rhubarb samples. The negative and weak correlations are indicated with blue lines (0.30 < | ρ | < 0.50), the negative and moderate correlations are indicated with orange lines (0.50 < | ρ | < 0.70) and the negative and strong correlations are indicated with red line ((|ρ| > 0.70). Thicker lines indicate a stronger correlation. (https://www.dummies.com/education/math/statistics/how-to-interpret-a-correlation-coefficient-r/). Non-liner correlations (| ρ | < 0.30) are indicated with grey lines. The length of each line has no meaningBack to article page