I'm wondering if this is possible with rrdtool:<br><br>I have a sensor which is logged once every 30 seconds.<br><br>I would like to produce a graph on which each point represents a 15 min average of the sampled data.<br>
<br>Here is the caveat: The graph should have as many points as there are 30 second data points with each point representing the average of the previous 15 minutes worth of data points. So a sort of "running average" if you will.<br>
<br>I'm guessing some DEF or CDEF magic will be needed to do this.... but I'm no statistics guru. :-)<br><br>Kind Regards,<br>Chris<br>