R help - May 1999 - Muliple partial matches with pmatch

I am using R0.64.1 under Windows 95.

The help for `pmatch' states that:

        If `duplicates.ok' is false multiple matches will result
        in the value of `nomatch' being returned, and if it is
        true, the index of the first matching value will be
        returned.

The help for pmatch gives the following examples:

        pmatch("m",   c("mean", "median",
"mode")) # returns NA
        pmatch("med", c("mean", "median",
"mode")) # returns 2

What I find is:
>
pmatch("m",c("median","mean","mode"))
[1] 3
>
pmatch("me",c("median","mean","mode"))
[1] NA
>
pmatch("me",c("median","mean","mede"))
[1] 3
>
pmatch("me",c("median","mean","mode"),duplicates.ok=T)
[1] 1

Is this a bug?

John Maindonald               email : john.maindonald at anu.edu.au        
Statistical Consulting Unit,  phone : (6249)3998        
c/o CMA, SMS,                 fax   : (6249)5549  
John Dedman Mathematical Sciences Building
Australian National University
Canberra ACT 0200
Australia

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John Maindonald <john.maindonald at anu.edu.au> writes:
> >
pmatch("me",c("median","mean","mode"))
> [1] NA
> 
> >
pmatch("me",c("median","mean","mede"))
> [1] 3
> 
> >
pmatch("me",c("median","mean","mode"),duplicates.ok=T)
> [1] 1
> 
> Is this a bug?
Of course it is... and one that seems strangely familiar. Did we fix
this before, or did we forget to check this variation?

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907
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