Figure 2. Observed measurements of antidepressant data and centers: : (A) center 1; (B) center 2; (c) center 3; (D) center4; (E) center 5; (F) center 6

From

A Shared Parameter Model for Longitudinal Data with Missing Values

Ahmed M. Gad, Nesma M. M. Darwish

American Journal of Applied Mathematics and Statistics. 2013, 1(2), 30-35 doi:10.12691/ajams-1-2-3