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. 2017 Dec 26;121(5):909–926. doi: 10.1093/aob/mcx161

Fig. 7.

Fig. 7.

Principal components analysis (PCA) of the nine architectural parameters of the 30 mock-ups with the highest value of Ad. (A) Projection of the nine parameters on the two first axes of the PCA. (B) Projection of the 30 mock-ups on the two first axes of the PCA. Cluster analysis based on the two first components of the PCA revealed four contrasted ideotypes. (C) Radial plots of the relative parameter values of the 30 mock-ups classified in the four ideotypes identified from the cluster analysis.