I have data points from a power spectrum (fft) output that look like the image below.
A characteristic of the data seems to be a heavy slope and then a flattening out. I would like to be able to calculate the slope of the line approximating the steep slope section (shown in blue) and the point at which it "kicks out" and starts flattening out (the corner of the blue angle).
How can this be done?
thanks in advance.
- The different sets have different slopes results in different kick-out points. so I can't just run best fit line on a fixed segment of the data.