The KalmanFilter indicator with additional trend strength indication using colored dots based on the standard deviation algorithm.
If the standard deviation of the KalmanFilter indicator is between the dK1 and dK2 parameter values, then a small colored dot appears on the moving average. Its color corresponds to the current trend direction.
input double dK1=1.5; // Square-law filter coefficient 1 input double dK2=2.5; // Square-law filter coefficient 2
If the standard deviation becomes higher than the dK2 input parameter value, then the dot size increases. Thus, we get 3 levels of trend strength indication:
Fig.1. The KalmanFilterStDev indicator
Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/13900
An example of counting the number of objects in the chart window.Exp_KalmanFilter
The Exp_KalmanFilter Expert Advisor is based on the KalmanFilter indicator color change.