Fig. 2From: nlive: an R package to facilitate the application of the sigmoidal and random changepoint mixed modelsAÂ Observed individual trajectories of global cognition in the 20 years before death for 70 individuals randomly selected in the made-up illustrative sample dataCog available in the nlive package. BÂ Boxplots of the longitudinal observed measures, obtained every year before death, in the whole populationBack to article page