object
|
Either a linear formula object, with the response on the left of a
~ operator and the terms, separated by + operators, on
the right or a groupedData object. The method function
lmList.groupedData is documented separately.
|
data
|
a data frame in which to interpret the variables named in
formula and groups .
|
groups
|
an optional one-sided formula specifying the partitioning of the
data according to which different lm fits should be
performed. Defaults to getGroupsFormula(data) , in which
case data must inherit from class groupedData .
|
level
|
an optional integer specifying the level of grouping to be used when
multiple nested levels of grouping are present.
|
na.action
|
a function that indicates what should happen when the
data contain NA s. The default action (na.fail ) causes
lmList to print an error message and terminate if there are any
incomplete observations.
|
pool
|
an optional logical value that is preserved as an attribute of the
returned value. This will be used as the default for pool in
calculations of standard deviations or standard errors for summaries.
|