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latrend (version 1.0.1)

lcApproxModel-class: lcApproxModel class

Description

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

Usage

# S3 method for lcApproxModel
fitted(object, ..., clusters = trajectoryAssignments(object))

# S3 method for lcApproxModel predict(object, ..., newdata = NULL, what = "mu", approxFun = approx)

Arguments

object

The lcModel object.

...

Additional arguments.

clusters

Optional cluster assignments per id. If unspecified, a matrix is returned containing the cluster-specific predictions per column.

newdata

Optional data frame for which to compute the model predictions. If omitted, the model training data is used. Cluster trajectory predictions are made when ids are not specified. If the clusters are specified under the Cluster column, output is given only for the specified cluster. Otherwise, a matrix is returned with predictions for all clusters.

what

The distributional parameter to predict. By default, the mean response 'mu' is predicted. The cluster membership predictions can be obtained by specifying what='mb'.

approxFun

The interpolation function to use for time points not in the feature set.