emmGrid objectsMiscellaneous methods for emmGrid objects
# S3 method for emmGrid
str(object, ...)# S3 method for emmGrid
print(x, ..., export = FALSE)
# S3 method for emmGrid
vcov(object, ...)
An emmGrid object
(required but not used)
An emmGrid object
Logical value. If FALSE, the object is printed. 
If TRUE, a list is invisibly returned, which contains character
elements named summary and annotations that may be saved 
or displayed as the user sees fit. summary is a character matrix 
(or list of such matrices, if a by variable is in effect).
annotations is a character vector of the annotations that would 
have been printed below the summary or summaries.
The vcov method returns a symmetric matrix of variances and
  covariances for predict.emmGrid(object, type = "lp")