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Sorting strings

On Mon, Feb 20, 2012 at 05:55:30AM -0800, statquant2 wrote:
Hi.

Try this

  Sys.setlocale("LC_COLLATE", "C") 


This comes from ?locale and reads there

     Sys.setlocale("LC_COLLATE", "C")   # turn off locale-specific sorting,
                                        #  usually

See also ?sort

     The sort order for character vectors will depend on the collating
     sequence of the locale in use: see ?Comparison?.

?Comparison

     Comparison of strings in character vectors is lexicographic within
     the strings using the collating sequence of the locale in use: see
     ?locales?.  The collating sequence of locales such as ?en_US? is
     normally different from ?C? (which should use ASCII) and can be
     surprising.  Beware of making _any_ assumptions about the
     collation order: ...

Hope this helps.

Petr Savicky.