Assume that your data is available in arraysarrData1andarrData2. Create an XML document node, sayNode1as follows:
docNode = com.mathworks.xml.XMLUtils.createDocument('Node1');
docRootNode = docNode.getDocumentElement;
Now put the data in the data nodes..
for i=1:length(arrData1),
% create nodes..
elPar = docNode.createElement('DataParent');
elData1 = docNode.createElement('Data1');
elData2 = docNode.createElement('Data2');
% put data in nodes..
elData1.appendChild(...
docNode.createTextNode(sprintf('%f', arrData1(i))));
elData2.appendChild(...
docNode.createTextNode(sprintf('%f', arrData2(i))));
% put nodes in the correct positions..
elParent.appendChild(elData1);
elParent.appendChild(elData2);
docRootNode.appendChild(elParent);
end
Now save the XML document. You can save it directly, or useuiputfileto get the standard save dialog of the OS.
[filename, pathname] = uiputfile(...
sprintf('%s.xml', datFile), 'Save XML file as');
% Save the XML document.
% xmlFileName = [dataOutFile,'.xml'];
xmlFileName = fullfile(pathname, filename);
xmlwrite(xmlFileName,docNode);
% open xml file to see your output
edit(xmlFileName);
To see more ways of using XML with MATLAB, refer to Java's documentation and play around to see what works.
Wednesday, December 22, 2004
Creating XML outputs with MATLAB
If you want to format your data output as an XML file, here's how to do it without doing any complicated string handling. MATLAB can use the XML handling capabilities of Java very easily. Here's how:
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10 comments:
where from "elParent" will come?
is the DOM functionallity level exposed by MATLAB dependant on the version of JAXP being used by MATLAB?
how to add attributes in headers like
marketRequest marketDataRef="md1" marketDataXpathRef="/Rosetta/market/marketData" /
&
- Rosetta version="3.3"
Nice, thanks.
Only instead:
% create nodes..
elPar = docNode.createElement('DataParent');
should be
% create nodes..
elParent = docNode.createElement('DataParent');
and instead:
[filename, pathname] = uiputfile(...
sprintf('%s.xml', datFile), 'Save XML file as');
should be
[filename, pathname] = uiputfile(...
sprintf('%s.xml', 'datFile'), 'Save XML file as');
Hello, I'm having a problem in the program that I cant solve.
I'm getting that: "??? Index exceeds matrix dimensions."
Do you know how can I solve that? I'm trying to export the data of 25 vectors, 9 lines each.
- Leonardo
Glavina,
post your question on the forum and see if you get any responses.
www.mathroot.com
Anil
Link to forum:
http://www.mathroot.com
I posted there, but no answer yet.
I was trying to do in another way, creating multiple nodes, but I got the same error. =/
- Leonardo
Good, but i dont know how to get my data back.
i created
arrData1=[ 1 2 3 4 5];
arrData2=[ 2 4 6 8 10];
and got an output xml file.
but i cant get the data back into workspace. How to do that.
please help. thanks
I have a problem with inserting a xml-document in an existing document.
with 'xmlread' I read a xml-file and then i create a file like shown in this example before wirth 'docNode=....'
How to insert this docNode to an existing xml-file???
I tried with insertBefore(docNode, node from existing file);
or with
docNode = node.createElement('CHAPTER');
%--------------------------------------------------------------------------
%----------------- OPEN EXISTING XML-TEMPLATE TO READ ---------------------
%--------------------------------------------------------------------------
docu = 'file.xml';
xmlDocu = xmlread(docu);
%--------------------------------------------------------------------------
%---- SEARCH IN XML-TEMPLATE, WHERE THE SECTION 'SW-TEST-CASES' BEGINS ----
%--------------------------------------------------------------------------
%------- DETERMINE ALL CHAPTER-ELEMENTS --------
allListItems = xmlDocu.getElementsByTagName('CHAPTER');
node=allListItems.item(22);
%-----search the section with the Text Content 'SW-Test'-----
%allListItems.getTextContent('SW-Test')
%--------------------------------------------------------------------------
%------------- REMOVE THE CURRENT SECTION 'SW-TEST-CASES' -----------------
%--------------------------------------------------------------------------
if(node.hasChildNodes())
while(node.getLength >0)
%node.insertBefore(docNode, node.item(0));
node.removeChild(node.item(0));
end
end
%--------------------------------------------------------------------------
% --------------- CREATE THE NEW SECTION 'SW-TEST-CASES' ------------------
%--------------------------------------------------------------------------
docNode = node.createElement('CHAPTER');
%docNode = com.mathworks.xml.XMLUtils.createDocument('CHAPTER');
%docRootNode = docNode.getDocumentElement;
LongName = docNode.createElement('LONG-NAME');
LMV = docNode.createElement('L-4');
LongName.appendChild(LMV);
LMV.appendChild(docNode.createTextNode(sprintf('Testcases')));
docRootNode.appendChild(LongName);
%--------------------------------------------------------------------------
%--------------------- SAVE THE EDITED XML DOCUMENT -----------------------
%--------------------------------------------------------------------------
xmlFileName = [tempname,'.xml'];
xmlwrite(xmlFileName,xmlDocu);
edit(xmlFileName);
But no reaction.
Who can help?
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