[R] identical() vs all( . == .) [was "strange things..."]

[Jari Oksanen]

maechler at stat.math.ethz.ch said:
>   identical() has still been underused quite a bit,
>   probably even in base R code.

Indeed, it seems to be at rank 841 among 1035  R/base commands (v1.5.1) with 12
occurrences. The most popular commands seem to be:

     1	   2835	if
     2	   1465	function
     3	   1160	length
     4	    972	c
     5	    719	stop
     6	    655	paste
     7	    622	is.null
     8	    464	.Internal
     9	    456	names
    10	    400	attr
    11	    358	missing
    12	    352	list
    13	    324	rep
    14	    300	any
    15	    290	cat
    16	    286	is.na
    17	    272	return
    18	    251	seq
    19	    202	for
    20	    193	par

If I didn't count them wrong.

cheers, jazza

And sorry for this useless message, but Martin Maechler's message about 
underuse of `identical' caused a strange Friday reaction.
-- 
Jari Oksanen -- Dept Biology, Univ Oulu, 90014 Oulu, Finland
Ph. +358 8 5531526, cell +358 40 5136529, fax +358 8 5531061
email jari.oksanen at oulu.fi, homepage http://cc.oulu.fi/~jarioksa/


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