A set of helper functions for modelsum.
na.modelsum(object, ...)# S3 method for modelsum
[(x, ...)
# S3 method for modelsum
labels(object, ...)
# S3 method for modelsum
labels(x) <- value
# S3 method for modelsum
merge(x, y, ...)
A data.frame resulting form evaluating modelsum formula.
Other arguments, or a vector of indices for extracting.
A modelsum object.
A list of new labels.
na.modelsum returns a subsetted version of object (with attributes).