fertiliza {datana}R Documentation

Fertilization experiment data.

Description

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

Usage

data(fertiliza)

Format

Contains three 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) 
levels(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


[Package datana version 1.0.5 Index]