plotTrajectories: Plot the data trajectories

In latrend: A Framework for Clustering Longitudinal Data

Plot the data trajectories

Description

Plots the output of trajectories for the given object.

Usage

plotTrajectories(object, ...)

## S4 method for signature 'data.frame'
plotTrajectories(
  object,
  response,
  time = getOption("latrend.time"),
  id = getOption("latrend.id"),
  cluster = NULL,
  facet = TRUE,
  ...
)

## S4 method for signature 'ANY'
plotTrajectories(object, ...)

## S4 method for signature 'lcModel'
plotTrajectories(object, ...)

Arguments

object	The data or model or extract the trajectories from.
...	Additional arguments passed to trajectories().
response	Response variable character name or a call.
time	The time variable name.
id	The identifier variable name.
cluster	Cluster variable name. If unspecified, trajectories are not grouped. Alternatively, cluster is a vector indicating cluster membership per id.
facet	Whether to facet by cluster.

See Also

trajectories plotFittedTrajectories plotClusterTrajectories

Examples

data(latrendData)

if (require("ggplot2")) {
  plotTrajectories(latrendData, response = "Y", id = "Id", time = "Time")

  plotTrajectories(
    latrendData,
    response = quote(exp(Y)),
    id = "Id",
    time = "Time"
  )

  plotTrajectories(
    latrendData,
    response = "Y",
    id = "Id",
    time = "Time",
    cluster = "Class"
  )

  # compute cluster membership based on the mean being below 0
  assignments <- aggregate(Y ~ Id, latrendData, mean)$Y < 0
  plotTrajectories(
    latrendData,
    response = "Y",
    id = "Id",
    time = "Time",
    cluster = assignments
  )
}
data(latrendData)
method <- lcMethodLMKM(Y ~ Time, id = "Id", time = "Time")
model <- latrend(method, latrendData, nClusters = 3)

if (require("ggplot2")) {
  plotTrajectories(model)
}

latrend documentation built on March 31, 2023, 5:45 p.m.