Wednesday, 17 November 2010

A better way to visualise power data

I've found visualising power data on a scatter plot is more useful than on a line graph:



Without the line interpolating between data points, we can clearly see the difference between continuous power demand and single data points which are part of a transient. I've also excluded 0 values. This is because 0 W demand is most likely an error, as no readings exist between 0 W and 70 W readings.

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