| anova {base} | R Documentation |
Compute analysis of variance (or deviance) tables for one or more fitted model objects.
anova(object, ...) print(anova.object)
object |
an object containing the results returned
by a model fitting function (e.g. lm or glm). |
... |
additional objects of the same type. |
This (generic) function returns an object of class anova.
These objects represent analysis-of-variance and analysis-of-deviance tables.
When given a single argument it produces a table which
tests whether the model terms are significant.
When given a sequence of objects, anova tests
the models against one another in the order specified.
The print method for anova objects prints
tables in a ``pretty'' form.
The comparison between two or more models will only be valid if they
are fitted to the same dataset. This may be a problem if there are
missing values and R's default of na.action = na.omit is used.