adjust_lmList.formula: Fitting Common Models via lm
Description
Separate linear models are fit via lm similar to lmList,
however, adjust_lmList can handle models where a factor takes only one
level within a group. In this case, the formula is updated eliminating
the offending factors from the formula for that group as the effect is
absorbed into the intercept.
Usage
# S3 method for formula
adjust_lmList(object, data, pool)
Arguments
object
a linear formula such as that used by lmList, e.g.
y ~ x1 + ... + xn | g, where g is a grouping factor.
data
a data frame containing the variables in the model.
pool
a logical value that indicates whether the pooled standard
deviation/error should be used.
References
Douglas Bates, Martin Maechler and Ben Bolker (2012). lme4:
Linear mixed-effects models using S4 classes. R package version 0.999999-0.