Displaying 20 results from an estimated 400 matches similar to: "using XML package to read RSS"
2016 Jan 18
3
Extraccion de datos de una Web
Buenas tardes,
Quiero extraer datos de una web en la que ser relaciona la semana con
la puntuación obtenida por un jugador. Ahora mismo llego a obtener
elnodo en el que se relacionan la semana con la puntuación obtenida,
pero no soy capaz de extraer esa informacion en una tabla de dos
columna (semana, puntuacion) teniendo en cuenta que puede que haya
semanas que no haya puntuado (en el ejemplo,
2016 Jan 19
2
Extraccion de datos de una Web
Muchas gracias a ambos!!!! Las dos soluciones me han funcionado.
Un saludo.
El día 18 de enero de 2016, 18:35, Carlos Ortega
<cof en qualityexcellence.es> escribió:
> Hola,
>
> Pero, si ya casi lo tienes... te quedan un par de pasos y ya está...
>
> Simplemente tienes que transformar "puntos_nodo" a bien un data.frame aunque
> quedará lleno de cosas que no te
2011 Mar 30
1
Package XML: Parse Garmin *.tcx file problems
I'm struggling with package XML to parse a Garmin file (named *.tcx).
I wonder if it's form is incomplete, but appreciably reluctant to paste
even a shortened version.
The output below shows I can get nodes, but an attempt at value of a
single node comes up empty (even though there is data there.
One question: Has anybody succeeded parsing Garmin .tcx (xml) files?
Thanks!
Michael
2004 Aug 12
1
Error Using pm.getabst()
R Users:
After installing Bioconductor, RSXML and all the relevant Win32 DLLs (libxml2, zlib, iconv), I receive the following error message when using pm.getabst()
Error in xmlRoot(absts) : no applicable method for "xmlRoot"
I receive this when using the example from help(pm.getabst).
Downloading the target XML file, parsing it with xmlTreeParse and applying xmlRoot returns no
2008 Dec 31
1
Chinese characters encoding problem with XML
XML is a good tool reading data from web within R. But I wonder how could get the encoding correctly.
library(XML)
url <- 'http://www.szitic.com/docc/jz-lmzq.html'
xml <- htmlTreeParse(url, useInternal=TRUE)
q <- "//tbody/tr/td"
dat <- unlist(xpathApply(xml, q, xmlValue))
df <- as.data.frame(t(matrix(dat, 4)))
dt<-as.character(df[15,1])
The first column of df
2008 Apr 29
4
XML write?
Is there any function to write a XML structure, after it was
read using xmlTreeParse?
Ex:
library(XML)
x <- xmlTreeParse("Irpf2008/aplicacao/dados/12345678901/12345678901.xml")
# write it...
Alberto Monteiro
PS: please, brazilians, don't be offended by my foul language!
2010 Apr 06
1
GridR
Dear All
I am doing one distributed data mining program. So I selected GridR
package for the distributed programming.
*grid.init(service="local",debug=FALSE, localTmpDir="GridRTmp/")
grid.apply("x",UCS, wait=TRUE )*
UCS is a function.
When I execute this statement, I have some errors like :
*cannot load local function/variable: xmlRoot
extracted from line: : no
2005 Mar 11
3
XML to data frame or list
Dear useRs,
I have a simple/RTFM question about XML parsing. Given an XML file,
such as (fragment)
<A>100</A>
<B>23</B>
<C>true</C>
how do I import it in a data frame or list, so that the values (100,
23, true) can be accessed through the names A, B and C?
I installed the XML package and looked over the documentation...
however after 20 minutes and a couple of
2003 Feb 25
1
How to modify XML documents and save changes
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",
2009 Jul 20
1
a complicated merging task
I would like to merge two dataframes, but i have a condition that needs to
used for the merge as well.
the rows (observations) in each dataframe are identified by each person's ID
and by the date of the observation.
Basically I would like it to be merged based on both ID (exact match) and
date (a condition where one dataframe's date must be after the other
dataframe's date).
2011 Jun 29
2
parse XML file
Hi all,
this is my first post in this mailing group. I hope that anyboby could
help me parsing a xml file.
I found this website http://www.omegahat.org/RSXML/gettingStarted.html
but unfortunately my XML file is not as easy as the one in the example.
Example:
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet
2013 Jan 22
2
Creating a Data Frame from an XML
Hello,
I'm attempting to read information from an XML into a data frame in R using
the "XML" package. I am unable to get the data into a data frame as I would
like. I have some sample code below.
*XML Code:*
Header...
Data I want in a data frame:
<data>
<row BRAND="GMC" NUM="1" YEAR="1999" VALUE="10000" />
<row
2011 Apr 06
1
Treatment of xml-stylesheet processing instructions in XML module
Hello again,
Another stumble here that is defeating me.
I try:
a<-readLines(url("http://feeds.feedburner.com/grokin"))
t<-XML::xmlTreeParse(a, ignoreBlanks=TRUE, replaceEntities=FALSE,
asText=TRUE)
elem<- XML::getNodeSet(XML::xmlRoot(t),"/rss/channel/item")[[1]]
And I get:
Start tag expected, '<' not found
Error: 1: Start tag expected, '<' not
2013 Jan 22
1
Create a Data Frame from an XML
Hello,
I'm attempting to read information from an XML into a data frame in R using
the "XML" package. I am unable to get the data into a data frame as I would
like. I have some sample code below.
*XML Code:*
Header...
Data I want in a data frame:
<data>
<row BRAND="GMC" NUM="1" YEAR="1999" VALUE="10000" />
<row
2013 Apr 12
1
Problem with handling of attributes in xmlToList in XML package
Hello all,
I have a problem with the way attributes are dealt with in the
function xmlToList(), and I haven't been able to figure it out for
days now.
Say I have a document (produced by nmap) like this:
> mydoc <- '<host starttime="1365204834" endtime="1365205860"><status state="up" reason="echo-reply"
2012 May 11
0
Using xpathapply or getnodeset to get text between two distinct tags
Hello:
The following code extracts the links to the daily transcripts of Canada's House Of Commons. 'links' is a matrix of URLs (ncol=1), each of which points to one day's transcripts.
If you inspect the code for scrape(links[1]), you will find that periodically there appears an italicitze tag after a paragraph tag (<p some text ><i>Translation</i></p>.
2005 May 08
2
Extract just some fields from XML
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
2008 Jul 02
1
Removing or overwriting an XML node
Hi,
I have an existing XML document on disk, which I'd like
to use as a template, and exchange a subnode with my own
newly created subtree:
<?xml version="1.0"?>
<Duncan>
<name a="1" b="xyz">
<first>Duncan</first>
<last>Temple Lang</last>
</name>
</Duncan>
created by e.g.
? library(XML)
2012 Nov 14
2
How to filter xml value in R?
Hi,
I have one xml file.
<Class>
<Node1 code ="1"> First node </Node1>
<Node2 code ="1"> Second node </Node2>
<Node3 code ="1"> Third node </Node3>
<Node1 code ="2"> Fourth node </Node1>
</Class>
for (i in 1:xmlSize())
{
print(Class[i]) # how can i filter Node1 ?
}
by
2012 Feb 23
1
multiple gsub
Hi Guys,
I am relatively new to R and was wondering if I could next my gsub command
in identifying one object
I have data which looks like this: <name>Taiwan_250km</name>
I want it to look like this: Taiwan_250km
So essentially I just want to gsub '<name>' and </name> with nothing!
So far I have got this: PolyNam <-