Variable-trajectory Let \(y_{it} \in {\mathbb{R}}\) denote the observed response value for the subject \(i \in \left\{ {1, \ldots ,n} \right\}\) at the time point \(t \in \left\{ {1,...,T_{i} } \right\}\), where \(T_{i}\) is the number of observation... [31989 chars].. reed more
