fun2name & name2fun: Convert between a function and its name and vice versa.
Description
fun2name compares a function (body) to all defined functions. If an
identical match is found to a defined function, that function is returned.
NB. This does not search through S4 methods.
name2fun simply converts its argument to a name and than evals it
to produce a function definition
Usage
fun2name(f)
name2fun(x)
Arguments
f
A function.
x
An object to be converted into a name and eval'd
Value
character. A name of the function.
Details
fun2name compares the function against existing functions using
identical. If a match is found, the name of the matching
function ( expressed as a character ) is returned.