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Fig. 4 | Diagnostic and Prognostic Research

Fig. 4

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

Fig. 4

Data A250. Functional forms of variables x5 and x6. Top: the estimate of the functional form from complete data (red, short-dashed), data without IPs identified using the L-1 approach (solid line) and true function (blue, long-dashed line). Bottom: the estimate of the functional forms of variables x5 (left) and x6 (right) after the removal of observation (126, 151) and (14, 126), respectively. Please note the different scales

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