plot.nparld_mctp: Plot nparLD multiple contrast results

In nparLD: Nonparametric Analysis of Longitudinal Data in Factorial Experiments

Plot nparLD multiple contrast results

Description

Displays simultaneous confidence intervals for local contrasts from a multiple contrast test procedure. The plot shows the contrast estimates together with their simultaneous confidence limits and a vertical reference line at zero. Intervals excluding zero are highlighted by default.

Usage

## S3 method for class 'nparld_mctp'
plot(
  x,
  xlab = "Contrast effect",
  ylab = "",
  main = NULL,
  ref.line = 0,
  ref.lty = 2,
  ref.col = "gray50",
  pch = 19,
  lwd = 2,
  col = NULL,
  ...
)

Arguments

x	An object of class "nparld_mctp".
xlab	Label for the x-axis. The default is "Contrast effect".
ylab	Label for the y-axis. The default is an empty label.
main	Optional plot title.
ref.line	Optional vertical reference line. The default is 0.
ref.lty	Line type for the reference line.
ref.col	Colour of the reference line.
pch	Plotting character.
lwd	Line width.
col	Optional colors for confidence intervals and point estimates. If NULL, intervals excluding zero are shown in red and intervals including zero are shown in black.
...	Further graphical arguments.

Details

Displays simultaneous confidence intervals for the local contrast results returned by the multiple contrast test procedure. The vertical reference line at zero indicates the null value for contrast effects.

Examples

data(shoulder)

fit <- nparLD(
  resp ~ group1 * group2 * time,
  data = shoulder,
  subject = "subject",
  hypothesis = "H0p",
  contrast = list("time", "Dunnett")
)

plot(fit$MCTP)

nparLD documentation built on Aug. 28, 2026, 5:06 p.m.