//+------------------------------------------------------------------+ //| FisherTransform.mq4 | //| | //| Fisher Transform | //| | //| Algorithm taken from book | //| "Cybernetics Analysis for Stock and Futures" | //| by John F. Ehlers | //| | //| contact@mqlsoft.com | //| http://www.mqlsoft.com/ | //+------------------------------------------------------------------+ #property copyright "Coded by Witold Wozniak" #property link "www.mqlsoft.com" #property indicator_separate_window #property indicator_buffers 2 #property indicator_color1 Red #property indicator_color2 Blue #property indicator_level1 0 double Fisher[]; double Trigger[]; double Value1[]; extern int Length = 10; int buffers = 0; int drawBegin = 0; int init() { if (Length < 3) Length = 3; drawBegin = Length; initBuffer(Fisher, "Fisher", DRAW_LINE); initBuffer(Trigger, "Trigger", DRAW_LINE); initBuffer(Value1); IndicatorBuffers(buffers); IndicatorShortName("Fisher Tranform [" + Length + "]"); return (0); } int start() { if (Bars <= Length) return (0); int countedBars = IndicatorCounted(); if (countedBars < 0) return (-1); if (countedBars > 0) countedBars--; int s, limit = Bars - countedBars - 1; for (s = limit; s >= 0; s--) { double price = P(s); double MaxH = price; double MinL = price; for (int i = 0; i < Length; i++) { price = P(s + i); if (price > MaxH) MaxH = price; if (price < MinL) MinL = price; } Value1[s] = 0.5 * 2.0 * ((P(s) - MinL) / (MaxH - MinL) - 0.5) + 0.5 * Value1[s + 1]; if (Value1[s] > 0.9999) Value1[s] = 0.9999; if (Value1[s] < -0.9999) Value1[s] = -0.9999; Fisher[s] = 0.25 * MathLog((1 + Value1[s]) / (1 - Value1[s])) + 0.5 * Fisher[s + 1]; Trigger[s] = Fisher[s + 1]; } return (0); } double P(int index) { return ((High[index] + Low[index]) / 2.0); } void initBuffer(double array[], string label = "", int type = DRAW_NONE, int arrow = 0, int style = EMPTY, int width = EMPTY, color clr = CLR_NONE) { SetIndexBuffer(buffers, array); SetIndexLabel(buffers, label); SetIndexEmptyValue(buffers, EMPTY_VALUE); SetIndexDrawBegin(buffers, drawBegin); SetIndexShift(buffers, 0); SetIndexStyle(buffers, type, style, width); SetIndexArrow(buffers, arrow); buffers++; }
Sample
Analysis
Market Information Used:
Series array that contains the highest prices of each bar
Series array that contains the lowest prices of each bar
Indicator Curves created:
Implements a curve of type type
Indicators Used:
Custom Indicators Used:
Order Management characteristics:
Other Features: