> Any idea on how would you implement a 'line of best fit' over > your graph? > Would you just look at an average of all rrd.archives per > graph? Then graph that value?
A line of best fit is more for finite data sets as in scatter graphs. Rrd archives go on forever, but taking the graphed timespan as a finite dataset could do. Drawing a true sloping line of best fit would take a lot of programming. I wouldn't dare to program the logic in CDEF rpn language. But I'm not a mathematician. Drawing just the average seems a bit crude to me. I'd at least add the standard deviation to it. I have some graphs that do just that, but I store the standard deviation in the rrd database the moment I put the data in the database. Serge. ------------- Op de inhoud van dit e-mailbericht en de daaraan gehechte bijlagen is de inhoud van de volgende disclaimer van toepassing: http://www.zeelandnet.nl/disclaimer.php ------------- For the content of this e-mail message and its attachment(s) the following disclaimer applies: http://www.zeelandnet.nl/disclaimer.php -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://lists.ee.ethz.ch/rrd-users WebAdmin http://lists.ee.ethz.ch/lsg2.cgi
