David Winsemius wrote:
On Feb 4, 2010, at 5:31 PM, Alex Bryant wrote:
Hi, I have a need to process (in real-time) a large number of
.sas7bdat files from within R. The problem is I don't want to convert
these files to .xpt (transport) every time. So just checking if
anyone has a (viable) way to read .sas7bdat files directly into R?
I believe (on the basis of what is written on the NCHS/NHANESwebsite)
that if you are a Windows user, which I am only under duress, you can
get at such data with a free product that SAS makes available:
http://www.sas.com/apps/demosdownloads/sassysview_PROD_8.2_sysdep.jsp?packageID=000176
Whether that product can be called as a system() executable with
arguments, I have no idea.
The SAS viewer has a pretty pathetic data export feature that won't even
produce valid csv files if you have any unmatched quotes in character
variables. I don't think it's very good about exporting metadata either.
Frank
--
Frank E Harrell Jr Professor and Chairman School of Medicine
Department of Biostatistics Vanderbilt University
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