toxicity {ade4}R Documentation

Homogeneous Table

Description

This data set gives the toxicity of 7 molecules on 17 targets expressed in -log(mol/liter)

Usage

data(toxicity)

Format

toxicity is a list of 3 components.

tab
is a data frame with 7 columns and 17 rows
species
is a vector of the names of the species in the 17 targets
chemicals
is a vector of the names of the 7 molecules

Source

Devillers, J., Thioulouse, J. and Karcher W. (1993) Chemometrical Evaluation of Multispecies-Multichemical Data by Means of Graphical Techniques Combined with Multivariate Analyses. Ecotoxicology and Environnemental Safety, 26, 333–345.

Examples

data(toxicity)
table.paint(toxicity$tab, row.lab = toxicity$species, 
    col.lab = toxicity$chemicals)

table.value(toxicity$tab, row.lab = toxicity$species, 
    col.lab = toxicity$chemicals)

Worked out examples


> library(ade4)
> ### Name: toxicity
> ### Title: Homogeneous Table
> ### Aliases: toxicity
> ### Keywords: datasets
> 
> ### ** Examples
> 
> data(toxicity)
> table.paint(toxicity$tab, row.lab = toxicity$species, 
+     col.lab = toxicity$chemicals)
> 
> table.value(toxicity$tab, row.lab = toxicity$species, 
+     col.lab = toxicity$chemicals)
> 
> 
> 
> 

[Package ade4 Index]