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]