Anova tables for fitted trend surface objects

DESCRIPTION:

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 .

USAGE:

anova.trls(object, ...)
anovalist.trls(object, ...)
summary.trls(object, digits = max(3, .Options$digits - 3), ...)

REQUIRED ARGUMENTS:

object
A fitted trend surface model object from surf.ls

OPTIONAL ARGUMENTS:

digits
number of significant figures used in printing.
...
Further objects of the same kind

VALUE:

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

SEE ALSO:

EXAMPLES:

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)