search for: ppatel3026

Displaying 6 results from an estimated 6 matches for "ppatel3026".

2008 Jun 17
2
try catch block
How can I use the try catch block such that if this statement fails xml <- xmlTreeParse(xmlTxt, useInternal=TRUE) then this statement is executed xml <- xmlMalFormed() ? This code does not work but assuming its somewhere along these lines: tryCatch(xml <- xmlTreeParse(xmlTxt, useInternal=TRUE), xml <- xmlMalFormed(f1)) -- View this message in context:
2008 Jun 19
2
Pattern Matching Replacement
I would like to replace "\r\n" with "" in a character string, where "\r\n" exists only between < and >, how could I do that? Initial: characterString = "<XML><tag1 id=\"F\r\n2\"></t\r\nag1>\r\n<tag\r\n2></tag2></XML>" Result: characterString = "<XML><tag1
2008 Jun 17
1
Scan document including "\n"
How do you read in a whole file while preserving end of line "\n" characters? Basically, read in a whole file as one string. Ex: <XML> <TAG> </TAG> </XML> After this file is read into a variable, it should really look like "<XML>\n<TAG>\n</TAG>\n</XML>\n" -- View this message in context:
2008 Jun 17
1
Error
My code seems to break out with error below for every 1000 files it processes. Then I re-run from the last file where it errored out and it runs without any bugs. Any ideas what might cause error below? Error in match(x, table, nomatch = 0) : formal argument "nomatch" matched by multiple actual arguments -- View this message in context:
2008 Jun 10
1
Parse XML
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
2008 Jun 25
0
Memory allocation failed: Copying Node
Following code bugs with "Memory allocation failed: Copying Node" error after parsing n thousand files. I have included the main code(below) and functions(after the main code). I am not sure which lines are causing the copying Node which results in memory failure. Please advise. #Beginning of Code for(i in 1:nrow(newFile)) { if(i%%3000 == 0) gc()