fertiliza: Fertilization experiment data.

In datana: Datasets and Functions to Accompany Analisis De Datos Con R

Fertilization experiment data.

Description

Data contains volume data at plot-level for a fertilization experiment.

Usage

data(fertiliza)

Format

Contains two variables, as follows:

treat

Treatment level.

volume

Plot-level volume, in m^{3}.

Source

The data were provided by Dr Christian Salas-Eljatib (Universidad de Chile, Santiago, Chile).

References

not yet

Examples

data(fertiliza)
head(fertiliza)
class(fertiliza$treat)
unique(fertiliza$treat)
means.g <- tapply(fertiliza$volume,fertiliza$treat,mean);means.g
sds.g <- tapply(fertiliza$volume,fertiliza$treat,sd);sds.g
ns.g <- tapply(fertiliza$volume,fertiliza$treat,length);ns.g

datana documentation built on June 13, 2025, 1:11 a.m.