R devel - Mar 2006 - all.equal buglet(s)

In the details section for 'all.equal' (in the paragraph
on complex values) it says 'all.numeric.numeric'.  I
presume that should be 'all.equal.numeric'.

When two integer vectors differ, it is possible to get
overflow:

 > set.seed(1)
 > r1 <- .Random.seed
 > set.seed(2)
 > r2 <- .Random.seed
 > all.equal(r1, r2)
[1] "Mean relative  difference: NA"
Warning message:
NAs produced by integer overflow in: target - current

A small change to 'all.equal.numeric' would fix that if it
is felt to be worthwhile.

Patrick Burns
patrick at burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of S Poetry and "A Guide for the Unwilling S User")

Thanks a lot, Pat!
>>>>> "PatBurns" == Patrick Burns <pburns at
pburns.seanet.com>
>>>>>     on Sat, 18 Mar 2006 12:54:48 +0000 writes:
    PatBurns> In the details section for 'all.equal' (in the
paragraph
    PatBurns> on complex values) it says 'all.numeric.numeric'.  I
    PatBurns> presume that should be 'all.equal.numeric'.

yes, thanks, fixed.

    PatBurns> When two integer vectors differ, it is possible to get
    PatBurns> overflow:

    >> set.seed(1)
    >> r1 <- .Random.seed
    >> set.seed(2)
    >> r2 <- .Random.seed
    >> all.equal(r1, r2)
    PatBurns> [1] "Mean relative  difference: NA"
    PatBurns> Warning message:
    PatBurns> NAs produced by integer overflow in: target - current

    PatBurns> A small change to 'all.equal.numeric' would fix that if
it
    PatBurns> is felt to be worthwhile.

it is.  Thank you.  The fix will be in tomorrow's R-devel

Martin Maechler, ETH Zurich