Just wondering if the proposed loop for the metadata on this conversion was
implemented by any chance...before I go trying the Long routine...
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The dsread output is little-endian, as that's the native format for
floats on the Wintel platform. The byte order should stay the same if
converting directly to a float, using a data structure like (C/C++):
union {
char bytes[8];
double value;
}
If reading the values with a SAS HEX
dsread (http://www.oview.co.uk/dsread) was updated yesterday, to include
various new features as suggested here and elsewhere. Of particular
interest might be:
- you can now use the /c and /v options together to get dataset contents in
CSV format for easier importing;
- there is now a /l
Hi All,
The hack below might help R users get going with Chris's DSREAD. I have not
had a chance to look at Monday's version of DSREAD, can't wait.
Note Duncan Murdoch was most gracious to supply me with a R function to
translate floats in 16 char hex to R floats.
Your utility solves the 200
-Original Message-
From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On
Behalf Of Roger DeAngelis(xlr82sas)
Sent: Monday, March 01, 2010 4:38 PM
To: r-help@r-project.org
Subject: Re: [R] Reading sas7bdat files directly
Hi All,
The hack below might help
Hi,
It looks like we may need to swap bytes(little endian to big endian). I
will look into it tonight.
As a side note, SAS reserves 28 floats for missing values. It should be
easy to convert these to NaN on input to R.
You can test this in SAS by converting the 16 char floats to ieee8. in
I suppose a link would have added usefulness:
http://www.oview.co.uk/dsread
Chris.
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Chris Long wrote:
I suppose a link would have added usefulness:
http://www.oview.co.uk/dsread
Chris.
As dsread seems to work perfectly under wine on Ubuntu linux (and quite
quickly), it could be quite valuable to many of us. Thanks for posting
this and for developing dsread! If time
No problem, Frank, I'm glad that you think it will be useful.
I will be making changes to dsread in the coming weeks so you may want to
hold off with your helper function in case my changes break it (the
formatting of the variable metadata listing may well change). Re: the
metadata, feel free
Chris Long wrote:
No problem, Frank, I'm glad that you think it will be useful.
I will be making changes to dsread in the coming weeks so you may want to
hold off with your helper function in case my changes break it (the
formatting of the variable metadata listing may well change). Re: the
If you don't have SAS and still need to read or write sas7bdat files: there
is the World Programming System (WPS) (commercial software).
http://www.teamwpc.co.uk/home/
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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?
Thank You.
Hi Alex,
Perhaps the read.ssd function in the foreign package might do what you want.
See [1] for details.
HTH,
Jorge
[1] http://cran.r-project.org/web/packages/foreign/index.html
http://cran.r-project.org/web/packages/foreign/index.html
On Thu, Feb 4, 2010 at 5:31 PM, Alex Bryant wrote:
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?
SAS
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
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)
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