Um, not really. But your question is pretty vague. It souds as if you want to approximate a stepwise function,, which in your case seems to be just a boolean thing, either on or off, at seemingly random intervals. What would you approximate it with? Perhaps some function which has the same average behaviour locally? Yes, you could do something, but you would need to write at least some minor amount of code, depending on your goals, and what that approximation would mean.
Or, are you asking about the curve on top? Yes, you could probably use a smoothing spline for that curve.
