Figure 1From: Transferability of health cost evaluation across locations in oncology: cluster and principal component analysis as an explorative tool Determination of optimal number of clusters. pF: Pseudo-F statistic, RSQ: R-Square, RMSSTD: Root-mean-square standard deviation, SPRSQ: Semi-partial R-squared (pF has been scaled so that its values fall between 0 and 1, allowing it to be displayed in the same graph).Back to article page