Figure 5

Relationship between indices and components. Visualisation of the relationship of the index variables and the three components extracted from the initial principal component analysis (PCA) (A) and the final PCA (B) solutions. The index variables are indicted by three-character abbreviations and the components by numbered nodes. Nodes are arranged in a way that they are closer to their more highly correlated index variables. Loading levels are indicated by the tone (from white for loading = 0 to dark grey for the highest level of loading) and the width of the lines connecting the index variables to the three components. The figures are created in RStudio (Version 1.4.1106)⁸⁰ using the package qgraph (version 1.6.9)⁸⁴. sHP horizontal placement accuracy, sVP vertical placement accuracy, sLG length accuracy, sIC inclination accuracy, pBR base rectangle priority, pOR organisation by relevance, pFR fragmentation, kVL mean velocity, kAC mean acceleration, kDC mean deceleration, kPK number of peak velocity.