tree: Vitality of Treetops
In nparLD: Nonparametric Analysis of Longitudinal Data in Factorial Experiments

tree	R Documentation

Vitality of Treetops

Description

Repeated vitality scores of treetops from three experimental areas. The data illustrate an ordinal longitudinal response in several groups.

Usage

tree

Format

A data frame with variables:

resp: Vitality score.
time: Year or measurement occasion.
group: Experimental area.
subject: Tree identifier.

Examples

data(tree)

## Not run: 
fit <- nparLD(resp ~ group * time,
              data = tree,
              subject = "subject",
              hypothesis = "H0F")
fit

## End(Not run)


## Not run: 
fit <- nparLD(resp ~ group * time,
              data = tree,
              subject = "subject",
              hypothesis = "H0p",
              contrast = list("group:time"))
fit
plot(fit)
plot(fit$MCTP)

## End(Not run)

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