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On approach is to create a native/foreign interface to R by
linking R as a library (libR.a and R.dll) file and
calling the C routines in the library to
i) initialize the R interpreter
ii) call an R function
We have done this with many languages and the procedure is well
understood at this
Jan Hummel wrote:
Dear All,
I have a question regarding best practise in setting up a XML parser
within R.
Because I have files with more than 100 MB and I'm only interested in
some values I think a SAX-like parser using xmlEventParse() will be the
best solution.
Unfortunately the
, there is a new version of the XML package on the Omegahat web site.
It has several new features, including a function to find nodes via
XPath expressions, SAX2 support, recursive support for
xmlElementsByTagName().
cheers
Jan
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read the posting guide! http://www.R-project.org/posting-guide.html
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Duncan Temple Lang[EMAIL PROTECTED]
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Using Perl or R shouldn't be an either/or issue.
We can call Perl code from R (via RSPerl at least)
and then we get the benefit of well tested, fast code
that might exist in Perl to read the log files
and the ability to do interactive, exploratory analysis in R.
And reading the file in Perl does
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Duncan Temple Lang[EMAIL PROTECTED]
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with strsplit() to break
them up.
Dieter
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ZABALZA-MEZGHANI Isabelle wrote:
Hello,
I would like to know if there is a possibility to open an R session via Java
(using the SJava package), then to terminate it, and re-run another.
At present, there is no code in the R system to terminate a session
and shut down the engine. I have
Francisco, CA 94143-0840 hm: (415) 550-1062
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Thanks.
Regards,
Bernd Holleczek
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--clean --configure-args='--with-build-xlisp-dll' RXLisp
I haven't looked at this package for a while, so let me know if there
are other problems.
D.
Luca Scrucca wrote:
Dear R users,
I was trying to install the package RXLisp by Duncan Temple Lang on a MDK
9.1 Linux machine running R
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help
Andrea
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this week.
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?
Sincerely, thank you!
Alberto de Luis
www.cicancer.org
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Na Li wrote:
On 27 Oct 2005, Duncan Temple Lang wrote:
Yes, it is of interest and was sitting on my todo list at
some time. If you want to go ahead and provide code to do it,
that would be terrific. There are other areas where encryption
Hi Walton.
.C/.Call are interfaces to _compiled_ C routines in a dynamically
loaded library (DLL or DSO - shared object). A progra
A program is often created from compiling C code into an executable.
We can call the executable via system, but we cannot access its routines
via .C/.Call.
So, if
this?:
#!/usr/lib/R/bin/R.bin
Well, that isn't quite it because I tried it and it didn't work!
Any advice greatly appreciated. Thanks in advance.
Mike
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compatible.
The event loop mechanism in Windows used by
tcltk and RGtk is a little bizarre and efforts
to generalize it have not been overly successful.
I thought about unloading the package RGtk but I don't
know how to do that.
Thanks,
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The RDCOMClient is available from a different repository
http://www.omegahat.org/R
You can include it in the list of repositories being
searched on Windows using the Packages menu in the R GUI
and then select the entry Select repositories
and include Omegahat in the selection.
Or just install
me ASAP...
You'll need to give a little more information if
you want us to help with that one. Unsuccessful
doesn't give us much to go on.
Thanks in advance..
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Duncan Temple
Lang
Sent: Thursday
to extract both the list of files in a tgz
archive
and to extract any one of these files?
Clearly I can use zcat and tar on Linux, but I need this to work within
the
R environment on Windows!
You could use tar on Windows: it is in the R tools set.
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Aimin Yan wrote:
I try a example
http://omega.psi.iastate.edu/bootstrapFile.html
it doesn't give me output. I don't why.
For another example
http://omega.psi.iastate.edu/trivial.html
it seems works except it doesn't display figure.
But it gives you an error that states why there
You should look in the log files from apache for error messages,
specifically the error.log file (typically).
If you are getting no output, the code in the
R script is most likely generating an error
before it creates any output.
So you can have it output information about what it is doing.
Martin Maechler wrote:
Ashley == Ashley Ford [EMAIL PROTECTED]
on Wed, 07 Feb 2007 17:18:56 + writes:
Ashley If I read in an .xml file eg with
xeg - xmlTreeParse(system.file(exampleData, test.xml,
package=XML))
Ashley It
Well, we'll need to know in what ways it doesn't work and
what operating system you are using, etc.
If you want to call R from Python, RPy is probably more straightforward.
But RSPython works fine on Unix machines. Not on Windows at this point.
D.
Alberto Vieira Ferreira Monteiro wrote:
Any
Just for the record, the method has been added for that particular
type of tree. So the original
saveXML(tt, file = test.xml)
will work.
Thanks for pointing it out.
D.
Alberto Monteiro wrote:
I wrote:
library(XML)
tt - xmlHashTree()
head - addNode(xmlNode(head), character(), tt)
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Several years ago, I wrote an R package RinS
which embeds R in S-Plus as a regular chapter
and then allowed one to call R functions from S-Plus
in the form
.R('rfunction', x, y, z)
I haven't looked at it for a long time, but the basic
architecture should still work. What might need to be
Wiener, Matthew wrote:
Dear Prof. Lang -
I am trying to install the XML library on a 64-bit SUSE linux system
(version info below) running 2.4.1.
I have gcc version 3.3.3, and libxml2 version 2.6.7. I know this is not
current, but I'm on a machine used and administered by others, and
).
HTH,
Tobias
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Hi Costas.
On my Windows setup, I don't get this error message.
What version of RDCOMClient are you using - i.e.
the output of
packageDescription(RDCOMClient)
and also what else is loaded into the R session, i.e.
sessionInfo()
D.
Vorlow Constantinos wrote:
Hello,
Try
Well, as you mention at the end of the mail,
several people have given you suggestions about
how to solve the problem using different approaches.
You might search on the Web for how to install a 64 bit version of libxml2?
Using xmlTreeParse(, useInternalNodes = TRUE) is an approach
to reducing
Hi Arjun
Have you tried using xmlTree() which uses an opaque
C representation of the document and I expect
will serialize the contents relatively rapidly.
The interface for creating the tree is intended to be
the same, and is at least similar to, as xmlOutputDOM.
The intent is that the
interactioninteractionRef121818/interactionRefmoleculeRef74726/moleculeRefmoleculeNameMBIP/moleculeName
selfVariantRef0/selfVariantRefpartnerVariantRef0/partnerVariantRef/interaction
/molecule
--- Duncan Temple Lang [EMAIL PROTECTED]
wrote:
Well, as you mention at the end of the mail,
several
There is a package available at
http://www.omegahat.org/Prerelease/RSource_0.1-1.tar.gz
that has an extended source() that maintains a list of directories
in which to search for files and a stack of the files currently
being source()d so that one can determine what is currently going on.
It
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