latrend-data {latrend}

Longitudinal dataset representation

Description

The latrend estimation functions expect univariate longitudinal data that can be represented in a data.frame with one row per trajectory observation:

• Trajectory identifier: numeric, character, or factor

• Observation time: numeric

• Observation value: numeric

In principle, any type of longitudinal data structure is supported, given that it can be transformed to the required data.frame format using the generic trajectories function. Support can be added by implementing the trajectories function for the respective signature. This means that users can implement their own data adapters as needed.

Included longitudinal datasets

The following datasets are included with the package:

• latrendData

• PAP.adh

• PAP.adh1y