True, re name matching, but I think we might want to consider a warning
if they are supplied as the user may not be getting what they expect,
regardless of the documentation....
Peter Dalgaard wrote:
> Seth Falcon <[EMAIL PROTECTED]> writes:
>
>>> Similar things happen in many similar circumstances.
>> Here's a similar thing:
>
> Not really, no?
>
>>> v <- 1:5
>>> v
>> [1] 1 2 3 4 5
>>> v[mustBeDocumentedSomewhere=3]
>> [1] 3
>>
>> And this can be confusing if one thinks that subsetting is really a
>> function and behaves like other R functions w.r.t. to treatment of
>> named arguments:
>>
>>> m <- matrix(1:4, nrow=2)
>>> m
>> [,1] [,2]
>> [1,] 1 3
>> [2,] 2 4
>>> m[j=2]
>> [1] 2
>
> Or even
>> m[j=2,i=]
> [1] 2 4
>
> However, what would the argument names be in the >2-dim case? i, j are
> used only in help("[") and that page is quite specific about
> explaining that named matching doesn't work.
>
--
Robert Gentleman, PhD
Program in Computational Biology
Division of Public Health Sciences
Fred Hutchinson Cancer Research Center
1100 Fairview Ave. N, M2-B876
PO Box 19024
Seattle, Washington 98109-1024
206-667-7700
[EMAIL PROTECTED]
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