varcomp {StatDA}R Documentation

Variance Components

Description

This function estimates the variance components for ANOVA.

Usage

varcomp(a1, a2, f1, f2)

Arguments

a1, a2 analytical duplicates
f1, f2 field duplicates

Value

pct.regional percentage of regional variability
pct.site percentage at site variability
pct.analytical percentage of analytical variability
pval p-value

Author(s)

Peter Filzmoser <P.Filzmoser@tuwien.ac.at> http://www.statistik.tuwien.ac.at/public/filz/

References

C. Reimann, P. Filzmoser, R.G. Garrett, and R. Dutter: Statistical Data Analysis Explained. Applied Environmental Statistics with R. John Wiley and Sons, Chichester, 2008.

Examples

# field duplicates:
data(CHorFieldDUP)
xfield1=CHorFieldDUP[,5:98]
xfield2=CHorFieldDUP[,99:192]

# anaytical duplicates:
data(CHorANADUP)
xanal1=CHorANADUP[,3:96]
xanal2=CHorANADUP[,97:190]

varcomp(xanal1[,1],xanal2[,1],xfield1[,1],xfield2[,1])

[Package StatDA version 1.1 Index]