Displaying 13 results from an estimated 13 matches for "isurl".
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inurl
2005 May 02
2
"Special" characters in URI
...rjanc g[au]"
R> tmp$URL <- "http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?term=gorjanc g[au]"
R> tmp
$term
[1] "gorjanc g[au]"
$URL
[1] "http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?term=gorjanc g[au]"
R> xmlTreeParse(tmp$URL, isURL=TRUE, handlers=NULL, asTree=TRUE)
Error in xmlTreeParse(tmp$URL, isURL = TRUE, handlers = NULL, asTree = TRUE) :
error in creating parser for http://eutils.ncbi.nlm.nih.gov/entrez/eutils/esearch.fcgi?term=gorjanc g[au]
# so I have a problem with space and [ and ]
# let's reduce a prob...
2007 Dec 14
6
Analyzing Publications from Pubmed via XML
...he search
provides data but obviously not as an R dataframe. I can get the search to
export the data as an xml feed and the xml package seems to be able to read
it.
xmlTreeParse("
http://eutils.ncbi.nlm.nih.gov/entrez/eutils/erss.cgi?rss_guid=0_JYbpsax0ZAAPnOd7nFAX-29fXDpTk5t8M4hx9ytT-
",isURL=TRUE)
But getting from there to a dataframe in which one column would be the name
of the journal and another column would be the year (to keep things simple)
seems to be beyond my capabilities.
Has anyone ever done this and could you share your script? Are there any
published examples where the e...
2005 Jul 19
1
Minor "bug" in source()
...- .Internal(parse(file, n = -1, NULL,
"?")))
if (verbose)
cat("--> parsed", Ne, "expressions; now eval(.)ing them:\n")
if (Ne == 0)
return(invisible())
if (chdir && is.character(ofile)) { <=== HERE
isURL <- length(grep("^(ftp|http|file)://", ofile)) >
0
if (!isURL && (path <- dirname(ofile)) != ".") {
owd <- getwd()
on.exit(setwd(owd), add = TRUE)
setwd(path)
}
}
<snip></snip&...
2005 May 08
2
Extract just some fields from XML
...ic 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 node 'pubdate' and its children, but I don't
know how to do that unless I try to dig into the structure of the XML
file. The problem is that structure can differ and then hardcoded set
of list indices i.e. tmp[[i]][[j]]... doesn...
2013 Mar 20
1
htmlParse (from XML library) working sporadically in the same code
...TTP resource
Error is coming from the following line in htmlParse code:
ans <- .Call("RS_XML_ParseTree", as.character(file), handlers, as.logical(ignoreBlanks), as.logical(replaceEntities), as.logical(asText), as.logical(trim), as.logical(validate), as.logical(getDTD), as.logical(isURL), as.logical(addAttributeNamespaces), as.logical(useInternalNodes), as.logical(isHTML), as.logical(isSchema), as.logical(fullNamespaceInfo), as.character(encoding), as.logical(useDotNames), xinclude, error, addFinalizer, as.integer(options), PACKAGE = "XML")
By the way, readHTMLTable(h...
2011 Jul 05
2
Stuck ...can't get sapply and xmlTreeParse working
...function(x) {
url.zill
<-paste("http://www.zillow.com/webservice/GetDeepSearchResults.htm?zws-id=X1-ZWz1bup03e49vv_5kvb6&address=",x,
sep="")
############## problem line is next #################################
zdoc <-xmlTreeParse(url.zill, useInternalNode=TRUE, isURL=TRUE)
############# problem line above ##################################
f$zpid <- sapply(getNodeSet(zdoc, "//result/zpid"), xmlValue)
f$zest.low <-sapply(getNodeSet(zdoc, "//valuationRange/low"), xmlValue)
f$zest <- sapply(getNodeSet(zdoc, "//zestimate/a...
2005 May 10
0
Fwd: Extract just some fields from XML]
...t 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 node 'pubdate' and its children, but I don't
> know how to do that unless I try to dig into the structure of the XML
> file. The problem is that structure can differ and then hardcoded set
> of list indice...
2004 Sep 29
2
RSXML - Parsing XML Documents on Internet
R Users -
I asked about this a few months ago and never did quite figure it out, so with more information, allow me to try again.
If I use the following code:
library(xml)
xmlTreeParse("http://home.comcast.net/~larsenmtl/xmlTestDoc.xml", isURL = TRUE)
I receive this error:
Error in xmlTreeParse("http://home.comcast.net/~larsenmtl/xmlTestDoc.xml"", :
error in creating parser for http://home.comcast.net/~larsenmtl/xmlTestDoc.xml"
Now I know that xmlTreeParse uses the libxml facilities for downloading and pa...
2011 May 30
1
Need help reading website info with XML package and XPath
...getNodeSet needs something
else to get to information contained in a bubble on a webpage. Any
suggestions or ideas would be GREATLY appreciated.
library(XML)
url <- "http://www.zillow.com/homes/511 W Lafayette St, Norristown, PA_rb"
doc <- htmlTreeParse(url, useInternalNode=TRUE, isURL=TRUE)
f1 <- getNodeSet(doc, "//a[contains(@href,'homedetails')]")
f2 <- getNodeSet(doc, "//span[contains(@class,'price')]")
f3 <- getNodeSet(doc, "//LIST[@Beds]")
f4 <- getNodeSet(doc, "//LIST[@Baths]")
f5 <- getNodeSet(doc, &qu...
2011 Jun 07
1
XML segfault on some architectures
...ault ***
address 0x500001c4f, cause 'memory not mapped'
Traceback:
1: .Call("RS_XML_ParseTree", as.character(file), handlers, as.logical(ignoreBlanks), as.logical(replaceEntities), as.logical(asText), as.logical(trim), as.logical(validate), as.logical(getDTD), as.logical(isURL), as.logical(addAttributeNamespaces), as.logical(useInternalNodes), FALSE, as.logical(isSchema), as.logical(fullNamespaceInfo), as.character(encoding), as.logical(useDotNames), xinclude, error, addFinalizer, PACKAGE = "XML")
2: xmlTreeParse(fileName)
Possible actions:
1:...
2011 May 28
1
newbie xml parsing question
...le to load the web page I'm
interested with the following code but I'm not sure of the next step to get
the information I'm interested in into R :
library(XML)
url <- "http://www.zillow.com/homes/511 W Lafayette St, Norristown, PA_rb"
doc <-doc <- htmlTreeParse(url1, isURL=TRUE)
doc
I'd like to be able to pull the following information into R
href home details string :
/homedetails/236-Arundel-Ave-Horsham-PA-19044/9933810_zpid/#{scid=hdp-site-map-bubble-address}
value for Zestimate \ Price: $239,000
Beds : 3
Baths: 1.0
Sqft :1630
I noticed all that informa...
2012 May 15
1
KEGGSOAP installation error
...ault ***
address 0x500001c4f, cause 'memory not mapped'
Traceback:
1: .Call("RS_XML_ParseTree", as.character(file), handlers,
as.logical(ignoreBlanks), as.logical(replaceEntities),
as.logical(asText), as.logical(trim), as.logical(validate),
as.logical(getDTD), as.logical(isURL),
as.logical(addAttributeNamespaces), as.logical(useInternalNodes), FALSE,
as.logical(isSchema), as.logical(fullNamespaceInfo),
as.character(encoding), as.logical(useDotNames), xinclude, error,
addFinalizer, PACKAGE = "XML")
2: xmlParse(url)
3: parseSchemaDoc(fileName)...
2002 May 08
0
Problems with package XML
I'm having some difficulties with the package XML.
Namely, issuing the following commands:
> library(XML)
> hp <- htmlTreeParse('http://www.liacc.up.pt/~ltorgo/index.html',isURL=T)
I get a flood of messages like this :
Save workspace image? [y/n/c]: readline: warning: rl_prep_terminal: cannot
get terminal settings
My system is:
> version
_
platform i686-pc-linux-gnu
arch i686
os linux-gnu
system i686, linux-gn...