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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><div><div><p class=MsoNormal><span style='color:#1F497D'>| </span>I think we probably need a few different approaches, depending on the benchmark, with moving averages being the simplest, and why I suggested we implement it first. Sometimes, smoothing the line is all you need... ;)<o:p></o:p></p></div><div><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>That's a viewpoint; another one is that statisticians might well have very good reasons why they spend so long coming up with statistical tests in order to create the most powerful tests so they can deal with marginal quantities of data.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Cheers,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Dave<o:p></o:p></span></p></div></div></div></body></html>