Hi all, I was hoping if someone can tell me what's the best way to separate background from expected. I have attached a picture of a representative graph. The data points are not real but the behavior is similar to what I expect to get from my research. The data I expect is supposed to be approximately constant across the graph and the background is more variable. Hence, the background in my picture will probably be the peaks. However, I am not sure what statistical method to use or which would be best suited for my research.