Calculate values in nodes

[guave]

I would like to use the following codes to calculate the total value of BR_PA. The result I received is NaN. When I went online to find out what is wrong, I realised that it is because no value is contained in some of the nodes and also because my values contain decimal point.

How do I resolve this issue? SOS

select="$bayerList[position() <= $halfIndex]"/>

select="$bayerList[position() > 1]"/>

[Martin Brändle]

I think the problem lies in your test in the alumProdSum template.

[guave]

Thanks for your reply. I have since use javascript to solve that problem.