Greg Kenyon

I need a way to count the number of large and small signal changes of a varying signal. I have created a derivative signal that tells me when the signal is changing and then I created capsules when the derivative is larger than a value (0.1 in my case). Now I need to be able to take the value of the signal at the start of the signal change and subtract it from the values at the end of the capsule. Then I want to create a new capsule for anywhere the difference is greater that a certain value. What is the best way to accomplish this?