Sum of Multiplied Values

Question

I have a fairly convoluted XML file and I need to do a weighted average of a few values within it using XSL. I am able to complete a sum of the weights OR of the values, but I c

Answer 1

To follow the example in that question you linked to, you would use this in XSLT 2.0/XPath 2.0:

Doing this summing in XSLT 1.0 is considerably more involved and typically involves either using recursive templates or some manifestation of the node-set() function. Here is an example of the latter: