[R] searching help for partial matches

[David Winsemius]

On Jun 17, 2009, at 1:31 PM, Steve Jaffe wrote:

>
> help.search -- excellent
>
> I'm a bit confused though -- doc seems to say that ??pattern is same  
> as
> help.search(pattern) but it doesn't work that way for me...I'd been  
> trying
> ?? for some time without success.

I thought the docs on this point were misleading, too, but later  
realized I was expecting too much of the interpreter. See:

??"allequal"    # does what you wanted.

help.search(allequal)    # so this doesn't work either

>
> For example,
> ??allequal #returns
> No documentation for '?allequal' in specified packages and libraries:
> you could try '???allequal'

Too many "?" ?
>
> It looks like it is treating "?allequal" as the input to the ?  
> function...
> Any idea what I need to get this work correctly?
>
> Thanks
>
> ?help.search
> help.search("allequal")
> help.search(apropos="allequal")
> ??allequal
>
>
> -- 
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>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT