If you have ever tried to plot a scatter diagram using a spread-sheet you will realise how difficult this is. The trouble with spread-sheets is that they are designed for business use, where every thing is neatly spaced out (i.e. with one point per month) this doesn't happen in the real, physical world. With 'Scatter' you control where the points go, so you can create the graphs that you need.
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Nem Software
Work will now begin on v2, so if you have any features that you would like to see in v2 then e-mail me at the address given in the nem software section.