in reply to Using findvalue in XML::Twig::XPath
You need to brush up on your xpath, the element node you're selecting ( ClinVarAccession with an @Acc attribute ) has no children or content -- it has no value
If you want the value of the @Acc attribute do like tangent shows in Re: Using findvalue in XML::Twig::XPath, select the attribute
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Re^2: Using findvalue in XML::Twig::XPath ( xpath is xpath )
by jswamin (Initiate) on Feb 27, 2014 at 08:49 UTC |