Table 1. Measure loadings after varimax rotation of first 2 components of PCA analysis of measure correlations (Spearman rank-order).
ID | Type | Measure | Source | Network parameters | PC1 | PC2 | |
1 | Citation | Scimago Journal Rank | Scimago/Scopus | −0.974 | −8.296 | 0.556* | |
2 | Citation | Immediacy Index | JCR 2007 | 1.659 | −7.046 | 0.508* | |
3 | Citation | Closeness Centrality | JCR 2007 | Undirected, weighted | 0.339 | −6.284 | 0.565* |
4 | Citaton | Cites per doc | Scimago/Scopus | −1.311 | −6.192 | 0.588* | |
5 | Citation | Journal Impact Factor | JCR 2007 | −1.854 | −5.937 | 0.592* | |
6 | Citation | Closeness centrality | JCR 2007 | Undirected, unweighted | −1.388 | −4.827 | 0.619 |
7 | Citation | Out-degree centrality | JCR 2007 | Directed, weighted | −3.191 | −4.215 | 0.642 |
8 | Citation | Out-degree centrality | JCR 2007 | Directed, unweighted | −2.703 | −4.015 | 0.640 |
9 | Citation | Degree Centrality | JCR 2007 | Undirected, weighted | −4.850 | −2.834 | 0.690 |
10 | Citation | Degree Centrality | JCR 2007 | Undirected, unweighted | −4.398 | −2.643 | 0.691 |
11 | Citation | H-Index | Scimago/Scopus | −3.326 | −2.003 | 0.681 | |
12 | Citation | Scimago Total cites | Scimago/Scopus | −4.926 | −1.722 | 0.712 | |
13 | Citation | Journal Cite Probability | JCR 2007 | −5.389 | −1.647 | 0.710 | |
14 | Citation | In-degree centrality | JCR 2007 | Directed, unweighted | −5.302 | −1.429 | 0.717 |
15 | Citation | In-degree centrality | JCR 2007 | Directed, weighted | −5.380 | −1.554 | 0.712 |
16 | Citation | PageRank | JCR 2007 | Directed, unweighted | −4.476 | 0.108 | 0.693 |
17 | Citation | PageRank | JCR 2007 | Undirected, unweighted | −4.929 | 0.731 | 0.726 |
18 | Citation | PageRank | JCR 2007 | Undirected, weighted | −4.160 | 0.864 | 0.696 |
19 | Citation | PageRank | JCR 2007 | Directed, weighted | −3.103 | 0.333 | 0.659 |
20 | Citation | Y-factor | JCR 2007 | Directed, weighted | −2.971 | 0.317 | 0.657 |
21 | Citation | Betweenness centrality | JCR 2007 | Undirected, weighted | −0.462 | 0.872 | 0.643 |
22 | Citation | Betweenness centrality | JCR 2007 | Undirected, unweighted | −0.474 | 1.609 | 0.642 |
23 | Citation | Citation Half-Life | JCR 2007 | / | / | 0.037 | |
24 | Usage | Closeness centrality | MESUR 2007 | Undirected, weighted | 3.130 | 2.683 | 0.703 |
25 | Usage | Closeness centrality | MESUR 2007 | Undirected, unweighted | 3.100 | 3.899 | 0.731 |
26 | Usage | Degree centrality | MESUR 2007 | Undirected, unweighted | 3.271 | 3.873 | 0.729 |
27 | Usage | PageRank | MESUR 2007 | Undirected, unweighted | 3.327 | 4.192 | 0.728 |
28 | Usage | PageRank | MESUR 2007 | Directed, unweighted | 3.463 | 4.336 | 0.727 |
29 | Usage | In-degree centrality | MESUR 2007 | Directed, unweighted | 3.463 | 4.015 | 0.728 |
30 | Usage | Out-degree centrality | MESUR 2007 | Directed, unweighted | 3.484 | 3.994 | 0.727 |
31 | Usage | PageRank | MESUR 2007 | Directed, weighted | 3.780 | 4.217 | 0.710 |
32 | Usage | PageRank | MESUR 2007 | Undirected, weighted | 3.813 | 4.223 | 0.710 |
33 | Usage | Betweenness centrality | MESUR 2007 | Undirected, unweighted | 3.988 | 4.271 | 0.699 |
34 | Usage | Betweenness centrality | MESUR 2007 | Undirected, weighted | 3.957 | 3.698 | 0.693 |
35 | Usage | Degree centrality | MESUR 2007 | Undirected, weighted | 5.293 | 3.528 | 0.683 |
36 | Usage | Out-degree centrality | MESUR 2007 | Directed, weighted | 5.302 | 3.518 | 0.683 |
37 | Usage | In-degree centrality | MESUR 2007 | Directed, weighted | 5.286 | 3.531 | 0.683 |
38 | Usage | Journal Use Probability | MESUR 2007 | 8.914 | 1.833 | 0.593 | |
39 | Usage | Usage Impact Factor | MESUR 2007 | / | / | 0.279 |
Average Spearman rank-order correlations to all other measures are listed under (five lowest values indicated by *).