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Fig. 3 | Diagnostic and Prognostic Research

Fig. 3

From: Effects of influential points and sample size on the selection and replicability of multivariable fractional polynomial models

Fig. 3

Data A250. Detection of IPs in variable x5 and x6 by deleting pairs of observations. The dashed and solid horizontal lines denote the thresholds of the FSP test at 0.01 and 0.05 level respectively. IPs are highlighted on the graph. Group G1 is the distribution of deviance difference for all 31,125 possible pairs. G2 and G3 are the distribution of pairs of subgroups, and criteria to define subgroups depend on influential points. Specific criteria are given in the figures

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