Extended Data Fig. 3: Illustration of age analyses for volume.
From: Fractal analysis of brain shape formation predicts age and genetic similarity in human newborns
a, Illustration of cross-sectional age-volume associations for the same three example regions of main text Fig. 2a. b, Out-of-sample performance of age prediction from volumes, evaluated using a 10-fold cross-validation scheme in analogy to main text Fig. 5b. The red line represents the identity line (that is, perfect prediction). Note the shift towards overestimating age in very premature infants, which was not observed in age prediction from fractal dimensionality. MAE: mean absolute prediction error in days; R2: variance explained in the test data.
