search for: xmleventparsing

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 values I'm looking for, to construct some higher "mass spectrum", are distributed over different lines: as

Hello everyone, I'm trying to parse a very large XML file using SAX with the XML package (i.e., mainly the xmlEventParsing function). This function takes as an argument a list of other functions (handlers) that will be called to handle particular xml nodes. If when I use Rprof(), all the handler functions are lumped together under the <anonymous> label, and I get something like this: $by.total...

Dear list, Sorry for bothering you with a pure odfSweave question, but I just ran into a problem that I cannot find the cause of. Anyonse seen this before? This file "used to work", but not anymore. Would apreciate all the help I could get. /Fredrik --------------------------------------------------------------- >

Could someone provide a link or examples of parsing XML document in R? Few specific questions below: For instance I can retrieve specific nodes using this: node <- xpathApply(xml, "//" %+% xtag, xmlValue) 1) I want to be able to retrieve parent node for this node, how can I do this? getParentNode() does not seem to cut it. 2) How can I retrieve children nodes for a particular

Hi all, thanks to the people who replied to my question! I finally solved the issue by writing own handlers and using xmlEventParse - which leads to the following problem which is so odd that its probably a bug. I use several special charachter in my XML-File, e.g. umlauts or ? or ? - but no matter how I encode my XML (UTF or ISO) or I escape these characters xmlEventParse always stops

Hello everyone, I am probably not the only one having trouble with this package but here goes. I want to install XML on Ubuntu. I installed libxml2-dev and everything works out fine until I get the following: Error in reconcilePropertiesAndPrototype(name, slots, prototype, superClasses, : No definition was found for superclass "namedList" in the specification of class

Hello! I am trying to get specific fields from an XML document and I am totally puzzled. I hope someone can help me. # URL URL<-"http://eutils.ncbi.nlm.nih.gov/entrez/eutils/efetch.fcgi?db=pubmed&id=11877539,11822933,11871444&retmode=xml&rettype=citation" # download a XML file tmp <- xmlTreeParse(URL, isURL = TRUE) tmp <- xmlRoot(tmp) Now I want to extract only

Dear all, for my diploma thesis I have to import huge XML-Files into R for statistical processing - huge means a size about 33 MB. I'm using the XML-Package version 1.9 As far as reading the complete file into R via xmlTreeParse doesn't work or is too slow, I'm trying to use xmlEventParse but I got completely stuck. I have many different type of nodes + <configuration>

Duncan, you are a king! Thanks a lot for this cookie. It really helped me. Thanks for the code as well as detailed explanation at the end. >Hi Gregor. > >Here is a function that will collect all of the nodes in the >XML document whose names are in the vector elementNames > >getElements = >function(elementNames) >{ > els = list() > > startElement = function(node,

I am getting the following error when using odfWeave Error in xmlEventParse(infile, handlers = handlers, trim = FALSE, state = state) : File content_1.xml does not exist This appears to be the same issue detailed in http://markmail.org/message/qsrqdtozizlngbrt#query:+page:1+mid:qsrqdtozizlngbrt+state:results however the link to XML_1.93-2.3.zip appears to be dead. Is there either a better

I am working to build the XML package for R on MacOS X. I have installed libxml2-2.5.9 into /usr/local. I set the LIBXML_INCDIR=/usr/local/include/libxml2. I use R INSTALL, I get the following: R INSTALL -c -l /usr/local/R/library XML_0.94-1.tar.gz : : : gcc -bundle -flat_namespace -undefined suppress -L/sw/lib -L/usr/local/lib -o XML.so DocParse.o EventParse.o ExpatParse.o HTMLParse.o

I tried to build (and install) XML_3.95-0.1.tar.gz on FreeBSD 10.0-CURRENT amd64, but it stopped during the check of R_HAS_REMOVE_FINALIZERS (full log appended): ---------------------------------- R CMD INSTALL XML_3.95-0.1.tar.gz [..snip..] Checking for 1.8: -DR_HAS_REMOVE_FINALIZERS=1 -I/usr/local/include/libxml2 -I/usr/local/include Using libxml2.* checking for gzopen in -lz... gcc46

I am trying to build the XML package on MacOS. I am using the fink installation of libxml-1.8.17. The configuration information is: Configuration information: Libxml settings libxml include directory: /sw/include/gnome-xml libxml library directory: -L/sw/lib -lxml -lz -lz -lxml libxml 2: no Compilation flags: -I/sw/include/gnome-xml -I/sw/include/gnome-xml/libxml

Dear, I want to read XML documents, add child nodes to some elements and store everything back as an XML document. I've tryed the following: doc <- xmlTreeParse("file.xml") QTListNode<-xmlElementsByTagName(xmlRoot(doc)[[1]],"tagname") append.xmlNode(QTListNode[[1]],newXMLNode(name ="Norm", attrs = NULL)) saveXML(doc, file = "out.xml",

Hola, muy buenas, Me bajé un archivo xml de la wikipedia en español. Al intentar abrirlo en R el ordenador no es capaz, ya que pesa descomprimido 10 GB. De ese xml solo me interesa un campo, el referente al texto del artículo. ¿Alguiém conoce alguna forma de cargar solo ese campo del xml en R sin cargar el xml completo? La salida seria un archivo .txt, donde cada fila fuera un artículo ó

Dear all I am trying to use the ODB package to connect to an libreoffice-odb database. The libreoffice package is german, thus, decimal separator is a comma. However, I can open the database and upload a it without error, library(ODB) db <- odb.open("Test.odb") but a soon as the "odb.open" command is executed, the decimal separator in R is changed to comma. Before