anova.trls: Anova tables for fitted trend surface objects
In spatial: Functions for Kriging and Point Pattern Analysis

Description Usage Arguments Value References See Also Examples

Compute analysis of variance tables for one or more fitted trend surface model objects; where anova.trls is called with multiple objects, it passes on the arguments to anovalist.trls.

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## S3 method for class 'trls'
anova(object, ...)
anovalist.trls(object, ...)

`object`	A fitted trend surface model object from `surf.ls`
`...`	Further objects of the same kind

anova.trls and anovalist.trls return objects corresponding to their printed tabular output.

Venables, W. N. and Ripley, B. D. (2002) Modern Applied Statistics with S. Fourth edition. Springer.

surf.ls

library(stats)
data(topo, package="MASS")
topo0 <- surf.ls(0, topo)
topo1 <- surf.ls(1, topo)
topo2 <- surf.ls(2, topo)
topo3 <- surf.ls(3, topo)
topo4 <- surf.ls(4, topo)
anova(topo0, topo1, topo2, topo3, topo4)
summary(topo4)