Compute Models by Dropping Terms - Generic function
DESCRIPTION:
Returns information about dropping each term of a model.
This function is generic (see Methods);
method functions can be written to handle specific classes of data.
Classes which already have methods for this function include:
aov, lm.
USAGE:
drop1(object, ...)
REQUIRED ARGUMENTS:
object:
a fitted model, from which new models can be formed by dropping
terms
in some sense.
VALUE:
an object representing some or all of the information got by fitting
each of the models formed by dropping a term from the original
model in object.
DETAILS:
The main method for this is drop1.lm, which produces
an anova object.
Other kinds of models could use different methods for summarizing the
additional fits and, possibly, different classes of objects to represent
the result.