approx models have defined cluster trajectories at fixed moments in time, which should be interpolated
For a correct implementation, lcApproxModel requires the extending class to implement clusterTrajectories(at=NULL)
to return the fixed cluster trajectories
# S3 method for lcApproxModel
fitted(object, ..., clusters = trajectoryAssignments(object))# S4 method for lcApproxModel
predictForCluster(
object,
newdata,
cluster,
what = "mu",
approxFun = approx,
...
)
The lcModel object.
Additional arguments.
Optional cluster assignments per id. If unspecified, a matrix is returned containing the cluster-specific predictions per column.
A data.frame of trajectory data for which to compute trajectory assignments.
The cluster name (as character) to predict for.
The distributional parameter to predict. By default, the mean response 'mu' is predicted. The cluster membership predictions can be obtained by specifying what = 'mb'.
Function to interpolate between measurement moments, approx() by default.