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The discussion starting here (tacked to the end of an older existing thread) is way too comical to be left unmentioned. Maybe sombeody can make sense if it all, I sure cannot!
Some compiled sample questions from the discussion:
the acquisition was made with this parameter ( 15 bytes per packet, 115200 baude rate ), how can I calculate the sampling interval.
I made the acquisition for 156 points, and the time between two point is 100ms but I don't know the sampling interval.
... so, i want to ask about the polynomial fit, is the polynomial order related to the value of sampling interval?