Logical. When TRUE, all logical results from the
“is.” identifier functions will be displayed, with a warning
message when the result applies only to the first element in the structure.
FALSE by default.
ignore.size.warn
Set to TRUE to force execution of the function
for large (> 20 K-bytes) objects. Defaults to FALSE.
Value
A list with following elements:
properties
A data frame with the class(es), type, mode and storage
mode of the object as well as the dim, length and object.size.
attributes.lengths
A named character vector giving all attributes
(c.f. “names”, “row.names”, “class”,
“dim”, and so forth) along with their length.
extensive.is
A character vector of all the identifier functions.
(starting with “is.”) that yield TRUE when used with x
as argument.