[R] RServe - How to use 'createReference' method?

joaodaniel jdanielnd at gmail.com
Tue Aug 4 16:01:15 CEST 2009


Actually you are right. I was looking on the wrong direction. But I still
got some doubts about how to use those methods.

I want to open a file on the client machine, for example a txt
tab-delimited, and create a dataframe with its information on R.

I got to create a RFileInputStream object, using the openFile method, so it
store the file information. Then I must use the read() method from the
RFileInputStream to get file information. And finally, I should use the
assing() method to relate the data with an R object. Is that right?

Romain Francois-2 wrote:
> Hi,
> The Rserve implementation of REngine does not support references (yet?). 
> Anyway, I don't think references are what you need here.
> You probably want the methods createFile and openFile that create 
> RFileInputStream and RFileOutputStream which you can use to transfer 
> files through the R server wire.
> http://www.rforge.net/org/docs/org/rosuda/REngine/Rserve/RConnection.html
> Romain
> On 08/03/2009 04:57 PM, joaodaniel wrote:
>> I need to input a txt, or xls, file from a client to R, using RServe.
>>> From what I've been reading, the best way to do this, is using the
>> 'createReference' method, from REngine package.
>> But I couldn't find any documents exemplifying it's use. I got  to upload
>> a
>> file from java? And then? How do i refeer the file to this method?
>> Best Regards,
>> J. Daniel
> -- 
> Romain Francois
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