How to Quantify & Identify (real-time) a Trading Range

One of the most challenging & frustrating tasks for a trader,
is to define with a rules-based (systematic) methodology,
and identify (on a real-time basis),
when a market is in a trading range.

Using the MACD-v both of these goals are achieved.

The market is defined as being as "Ranging"
(one of the Core 7 Range Rules/States)
when the MACD-v is between the -50 and 50 ranges,
for more than 25 bars consecutively.