I am looking for the lilnear regression line used in a Kelpie chart. I have the Bollinger bands in place but need the linear regression line. The line I am looking for is refered to the “Dog” in Global One Groups Kelpie chart. I am trying to program this into MT4. I believe the formual is “lenght 4 shift 1” . Does this make sense to anyone? How do I put it in as an indicator?