feeling better and modelling

Well, I'm feeling a mite better today. Temperature down and although I awoke with a throbbing headache, that's now mostly gone (just a dull achey with occasional throbbiness when moving around.) So, I thought perhaps I'd try a little modelling. Less brain-taxing than writing conclusions. Can't get the result I want though so have given up on that.

Decision: won't do any more work today, but will start afresh with conclusions tomorrow.