attr | Object AttributesGet or set specific attributes of an object. |
attributes | Object Attribute ListsThese functions access an object's attributes. The first form below returns the object's attribute list. The replacement forms uses the list on the right-hand side of the assignment as the object's attributes (if appropriate). |
class | Object ClassesR possesses a simple generic function mechanism which can be used for an object-oriented style of programming. Method dispatch takes place based on the class of the first argument to the generic function. |
formals | Access to and Manipulation of the Formal ArgumentsGet or set the formal arguments of a function. For the first form, fun can also be a character string naming the function to be manipulated, which is searched for from the parent frame. If it is not specified, the function calling formals is used. Only closures have formals, Not primitive functions. |
eval | Evaluate an (Unevaluated) ExpressionEvaluate an R expression in a specified environment. |
parse | Parse Expressionsparse returns the parsed but unevaluated expressions in a list. |
sys.calls | Functions to Access the Function Call Stack These functions provide access to environments (‘frames’ in S terminology) associated with functions further up the calling stack. |
sys.call | Functions to Access the Function Call Stack These functions provide access to environments (‘frames’ in S terminology) associated with functions further up the calling stack. |