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angel61606 · Joined: Jul 8, 2020 Posts: 85

Hi Jarek

I am using a report graph element to show multiple signals with same duration and format, however, when I show two rms signals in one reportgraph simultaneously, one of them show spikes which are not in the real signal. if I show each of them separately I don't see the spikes. what is the cause? I can send you a picture if you will!

jarek · Joined: Oct 22, 2007 Posts: 960

Spikes can be misleading. In order to create a chart, data must be averaged for each pixel on the screen, and this may get complicated when it happens on multiple levels (averaging on already processed data). How this shows depends on resolution (data per pixel). On some of those resolutions spikes will be visible, on others not.

So a picture will not help. The only way to debug would be to create a snippet which paints two significantly different charts from the same source data.