[R] filehash

[Roger D. Peng]

Yes, the file will be created in the current working directory and is probably 
the reason for the error in 'dbInit'.  This is a bit of a dumbo on my 
part---thanks for copying me.

-roger

Prof Brian Ripley wrote:
> I suspect you have a file permission problem, and noticed filehash has 
> some bugs which would mask this.  E.g. it does
> 
> createDB1 <- function(dbName) {
>     if(!hasWorkingFtell())
>         stop("need working 'ftell()' to use 'DB1' format")
>     if(!file.exists(dbName))
>         file.create(dbName)
>     else
>         message(gettextf("database '%s' already exists", dbName))
>     TRUE
> }
> 
> and so fails to check that file.create succeeded, and calls message() on 
> an already translated message without 'domain=NA'.  (It also calls 
> dir.create without checking the result.)
> 
> As far as I can see filehash will try to create a file in the current 
> working directory.  Did you set up the shortcut as dscribed in the 
> rw-FAQ so that the working directory was owned by you?
> 
> On Fri, 14 Mar 2008, Davood Tofighi wrote:
> 
>> Hello,
>>
>> I'm using filehash on the windows XP and it has been working fine with 
>> the
>> newest R version 2.6.2. However, on the windows vista, when I ran the 
>> same
>> code, I got the following error:
>>
>>> dbCreate("simdb")    #create simdb database
>> [1] TRUE
>>> db<-dbInit("simdb")  #initiate an object of database
>> Error in sprintf(gettext(fmt, domain = domain), ...) :
>>  object "datafile" not found
>>>
>>
>> Thanks,
>> Davood
>>
>>     [[alternative HTML version deleted]]
>>
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> 

-- 
Roger D. Peng  |  http://www.biostat.jhsph.edu/~rpeng/