object
|
either a linear formula object of the form y ~ x1+...+xn | g
or a groupedData object. In the formula object, y
represents the response, x1,...,xn the covariates, and
g the grouping factor specifying the partitioning of the data
according to which different lm fits should be performed. The
grouping factor g may be omitted from the formula, in which
case the grouping structure will be obtained from data , which
must inherit from class groupedData . The method function
lmList.groupedData is documented separately.
|
data
|
a data frame in which to interpret the variables named in
object .
|
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.
|