reading data in xml format

      <xml>
        <node1>
          <val>5</val>
          <val>7</val>
        </node1>
      </xml>

    xml_vals = node.item(0).getElementsByTagName('val');
    values = zeros(1,xml_vals.getLength);
    for iVal = 1:xml_vals.getLength-1
      values(iVal+1) = str2num(xml_vals.item(iVal).getFirstChild.getData);
    end

Is there a simple way to use an XMLDom to get all the values directly into a vector? Currently I am looping through them but this is very slow.

[Cedric]

How large/complex is your XML file?

Answer 1

[Shruti Sapre]

Hi Tom,

I understand that you want to read all the values of an xml into a vector. I tried to look this up and couldn’t find an existing function or a direct way to do this.

There is a function on MATLAB Central that reads xml into a MATLAB structure, maybe this could help you perform the parsing faster:

http://www.mathworks.com/matlabcentral/fileexchange/28518-xml2struct

Here is another link that may help you with easy access to values in an xml:

http://www.mathworks.com/matlabcentral/fileexchange/12907-xml-io-tools

Alternatively, you could try the “parseXML” function in the below documentation link to check if this makes the process a bit faster:

http://www.mathworks.com/help/matlab/ref/xmlread.html

Hope this helps!

-Shruti