RMS Amplitudes of voltage I am looking here at the course of current fluctuations and have calculated the RMS values, but somehow it seems strange to me: with the black line there are small fluctuations, but the RMS value is still comparably large with, for example, the blue...
The RMS values are:
red:0.83mV
blue:0.44
green:0.52
black: 0.31mV
compare with the picute
RMS includes the mean. If you want a metric for &quot;variation&quot; use the standard deviation instead or subtract the mean first (which is basically the same thing).
For the black curves moves slowly, but it still moves by a good amount. If you want a metric of the &quot;fuzziness&quot; than you can apply a high pass filter first that gets rid of the slow &quot;drift&quot; movemenent.