Internal functions to access or replace an object metadata field without
going through attribute trees. field_system()
, field_object()
and
field_user()
correspond to the system, object and user meta fields,
respectively.
field_system(x, field = NULL)field_system(x, field = NULL) <- value
field_object(x, field = NULL)
field_object(x, field = NULL) <- value
field_user(x, field = NULL)
field_user(x, field = NULL) <- value
a list of attributes extracted from a dfm
, tokens
, or corpus
object by attributes(x)
name of the sub-field to access or assign values