[R] Parsing a XML file

[Duncan Temple Lang]

xmlDoc() is not the function to use to parse a file.

Use

   doc = xmlParse("Malaria_Grave.xml")


xmlDoc() is for programmatically creating a new XML within R.
It could be more robust to being called with a string, but
the key thing here is that it is not the appropriate function for what
you want.


Also, if there had been a problem with the parsing, you'd need to give
me/us the offending XML  file so that we could have a chance of reproducing
the problem.

   D.


On 8/24/10 2:35 PM, Orvalho Augusto wrote:
> I have one XML file with 30MB that I need to read the data.
> 
> I try this;
> library(XML)
> doc <- xmlDoc("Malaria_Grave.xml")
> 
> And R answers like this
>  *** caught segfault ***
> address 0x5, cause 'memory not mapped'
> 
> Traceback:
>  1: .Call("RS_XML_createDocFromNode", node, PACKAGE = "XML")
>  2: xmlDoc("Malaria_Grave.xml")
> 
> Possible actions:
> 1: abort (with core dump, if enabled)
> 2: normal R exit
> 3: exit R without saving workspace
> 4: exit R saving workspace
> 
> 
> Or I try this:
> doc <- xmlTreeParse("Malaria_Grave.xml")
> 
> I get this
> xmlParseEntityRef: no name
> xmlParseEntityRef: no name
> Error: 1: xmlParseEntityRef: no name
> 2: xmlParseEntityRef: no name
> 
> Please guys help this simple mortal!
> Caveman
> 
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> 
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