clusterTrajectories: Extract cluster trajectories

In latrend: A Framework for Clustering Longitudinal Data

Extract cluster trajectories

Description

Extracts a data.frame of the cluster trajectories associated with the given object.

Usage

clusterTrajectories(object, ...)

## S4 method for signature 'lcModel'
clusterTrajectories(object, at = time(object), what = "mu", ...)

Arguments

object	The model.
...	For lcModel objects: Arguments passed to predict.lcModel.
at	A ⁠numeric vector⁠ of the times at which to compute the cluster trajectories.
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'.

Value

A data.frame of the estimated values at the specified times. The first column should be named "Cluster". The second column should be time, with the name matching the timeVariable(object). The third column should be the expected value of the observations, named after the responseVariable(object).

See Also

plotClusterTrajectories

Other lcModel functions: clusterNames(), clusterProportions(), clusterSizes(), coef.lcModel(), converged(), deviance.lcModel(), df.residual.lcModel(), estimationTime(), externalMetric(), fitted.lcModel(), fittedTrajectories(), getCall.lcModel(), getLcMethod(), ids(), lcModel-class, metric(), model.frame.lcModel(), nClusters(), nIds(), nobs.lcModel(), plot-lcModel-method, plotClusterTrajectories(), plotFittedTrajectories(), postprob(), predict.lcModel(), predictAssignments(), predictForCluster(), predictPostprob(), qqPlot(), residuals.lcModel(), sigma.lcModel(), strip(), time.lcModel(), trajectoryAssignments()

Examples

method <- lcMethodLMKM(Y ~ Time, id = "Id", time = "Time")
model <- latrend(method, latrendData)

clusterTrajectories(model)

clusterTrajectories(model, at = c(0, .5, 1))

latrend documentation built on Aug. 8, 2025, 6:59 p.m.