varcomp: Variance Components
In StatDA: Statistical Analysis for Environmental Data

varcomp

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://cstat.tuwien.ac.at/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])

StatDA documentation built on June 7, 2023, 6:26 p.m.