Bartlett

In an experiment to investigate the effect of cuitting length (two levels) and planting time (two levels) 
on the survival of plum root cuttings, 240 cuttings were planted for each of the 2 x 2 combinations of these factors, 
and their survival was later recorded. 
 
Bartlett (1935) used these data to illustrate a method for testing for no three-way interaction in a contingency table.

datasets

Provides additional data sets, methods and documentation
        to complement the vcd package for Visualizing Categorical Data
        and the gnm package for Generalized Nonlinear Models. In
        particular, vcdExtra extends mosaic, assoc and sieve plots from
        vcd to handle glm() and gnm() models and adds a 3D version in
        mosaic3d.

Michael Friendly

vcdExtra

vcd additions

Bartlett function

A 3-dimensional array resulting from cross-tabulating 3 variables for 960 observations. The variable names and their levels are: <tabular>rll</tabular>{
 No 	Name 	Levels 1	<code>Alive</code>	<code>"Alive", "Dead"</code>2	<code>Time</code>	<code>"Now", "Spring"</code>3	<code>Length</code>	<code>"Long", "Short"</code>}

format

Hand, D. and Daly, F. and Lunn, A. D.and McConway, K. J. and Ostrowski, E. (1994).
A Handbook of Small Data Sets. London: Chapman & Hall, p. 15, # 19.

Bartlett: Bartlett data on plum root cuttings

Description

Usage

Arguments

format

source

References

Examples