Table 3. Factor Loading.

	Factor 1	Factor 2	Factor 3
ln(referenced SCs)	0.78	-0.59	0.15
Ratio oth-disc refs	0.67	0.35	-0.17
1–Gini	-0.07	0.94	0.05
Simpson	0.93	-0.11	0.18
Shannon	0.91	-0.32	0.18
Avg dissimilarity	0.09	0.00	0.95
Rao-Stirling	0.77	0.04	0.59

Cumulative proportion variance explained: 0.89.

Data sourced from Thomson Reuters Web of Science Core Collection.