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
<aikidasgu...@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<m...@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
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West Hartford, CT
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