file: eugirp_aggparentanimal.r

[aleip]

This file calculates the average values for animal types and items that are weighted (by population) .
It is called several times, once for 'swine' and 'sheep', once for 'Dairy Cattle' and 'Non-Dairy Cattle', and once for 'Cattle' (aggregating dairy and non-dairy).
The file loops of meastypes, gases, sources etc. in a quite intransparent way.

• It needs urgently to be improved to make use of data.table features to get more transparent.
• Also, there needs to be a test added if the calculation is OK - we have discovered cases in the past (usually at a point in time where we could not look more carefully)