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Rotated factor loadings for each strain on each of the four main factors extracted by principal factors factor analysis (PFFA) are plotted on a radar plot. Most of the Wistar-Kyoto (WKY) strains loaded high on factor 1, and all spontaneously hypertensive (SHR) strains loaded high on factor 2. The WKY/NCrl German strain and Sprague-Dawley (SD) strain loaded moderately on factor 3.
