[R] Revolution Analytics reading SAS datasets

David Winsemius dwinsemius at comcast.net
Fri Feb 11 17:55:47 CET 2011


On Feb 11, 2011, at 11:32 AM, Chao(Charlie) Huang wrote:

> I am right now using Revolution R Enterprise 4.2. Could somebody show
> me how to import/export SAS datasets. Thanks.

Should you be asking the company from whom you obtained this  
proprietary product?

-- 
David.
>
>
>
> On Fri, Feb 11, 2011 at 8:52 AM, Abhijit Dasgupta, PhD
> <aikidasgupta at gmail.com> wrote:
>>
>> I'm sure the legal ground is tricky. However, OpenOffice and  
>> LibreOffice and
>> KWord have been able to open the (proprietary) MS Word doc format  
>> for a
>> while now, and they are open source (and Libre Office might even be  
>> GPL'd),
>> so the algorithm is in fact "published" in Jeremy's sense, and has  
>> been for
>> several years. I figure the reason for keeping the SAS reading  
>> functionality
>> proprietary is Revolution's (perfectly legitimate) wish to make  
>> money by
>> separating their product from GNU R and adding features that would  
>> make
>> people want to buy rather than just download from CRAN.
>>
>> Within GNU R there are of course sas.get in the Hmisc package (which
>> requires SAS). It should also be quite easy to write a wrapper around
>> dsread, a command-line closed source product freely downloadable in a
>> limited form which will convert sas7bdat files to csv or tsv format  
>> (and SQL
>> if you pay). This latter path won't require SAS locally.
>>
>> I'm also sure that SAS has a way to export its datasets into R,  
>> since the
>> current version of IML Studio will in fact interact with R.
>>
>>
>> On 02/10/2011 03:11 PM, Jeremy Miles wrote:
>>>
>>> On 10 February 2011 12:01, Matt Shotwell<matt at biostatmatt.com>   
>>> wrote:
>>>>
>>>> On Thu, 2011-02-10 at 10:44 -0800, David Smith wrote:
>>>>>
>>>>> The SAS import/export feature of Revolution R Enterprise 4.2 isn't
>>>>> open-source, so we can't release it in open-source Revolution R
>>>>> Community, or to CRAN as we do with the ParallelR packages  
>>>>> (foreach,
>>>>> doMC, etc.).
>>>>
>>>> Judging by the language of Dr. Nie's comments on the page linked  
>>>> below,
>>>> it seems unlikely this feature is the result of a licensing  
>>>> agreement
>>>> with SAS. Is that correct?
>>>>
>>>
>>> There was some discussion of this on the SAS email list.  People who
>>> seem to know what they were talking about said that they would have
>>> had to reverse engineer it to decode the file format.  It's slightly
>>> tricky legal ground - the file format can't be copyrighted but
>>> publishing the algorigthm might not be allowed.  I guess if they
>>> release it as open source, that could be construed as publishing the
>>> algorithm. (SPSS and WPS both can open SAS files, and I'd be  
>>> surprised
>>> if SAS licensed to them.  [Esp WPS, who SAS are (or were) suing for
>>> all kinds of things in court in London.)
>>>
>>> Jeremy
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>
>> ______________________________________________
>> R-help at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>
> ______________________________________________
> R-help at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.

David Winsemius, MD
West Hartford, CT



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