This sort of thing does depend on the locale, but here I get the same
answer on Windows and Linux (the order you give).
So please give us much more complete information about what locales you
used and what results you got.
?sort does say
The sort order for character vectors will depend on the collating
sequence of the locale in use: see 'Comparison'.
and ?Comparison says
Collation of
non-letters (spaces, punctuation signs, hyphens, fractions and so
on) is even more problematic.
so you have been warned.
On Tue, 27 May 2008, Yohan Chalabi wrote:
Dear all,
While debugging a function I realized that
sort(c(" 1", " 2", "10"))
do not give the same result on Windows and Linux.
This is actually not surprising because white spaces are not handle in
the same manner on these two platforms. But I was wondering if this
behavior is also desired in R.
Well, do you want R to behave in the same way as other tools on your
platform, or the same way on all implementations? One cannt have both.
Currently R is using the OS's facilities, but the NEWS for R-devel says
o There is support for using ICU (International Components for
Unicode) for collation, enabled by configure option --with-ICU
on a Unix-alike and by a setting in MkRules on Windows.
Function icuSetCollate() allows the collation rules (including
the locale) to be tuned. [Experimental]
so we have been exploring alternatives (not least because the C runtime of
Mac OS X cannot sort well in UTF-8 locales).
regards,
Yohan Chalabi
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Brian D. Ripley, [EMAIL PROTECTED]
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
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