//+------------------------------------------------------------------+
//| FisherCG.mq4 |
//| |
//| Fisher Stochastic CG Oscillator |
//| |
//| 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 FisherCG[];
double Trigger[];
double CG[];
double Value1[];
double Value2[];
extern int Length = 8;
int buffers = 0;
int drawBegin = 0;
int init() {
drawBegin = Length;
initBuffer(FisherCG, "Fisher CG", DRAW_LINE);
initBuffer(Trigger, "Trigger", DRAW_LINE);
initBuffer(CG);
initBuffer(Value1);
initBuffer(Value2);
IndicatorBuffers(buffers);
IndicatorShortName("Fisher CG [" + Length + "]");
return (0);
}
int start() {
if (Bars <= drawBegin) 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 Num = 0.0;
double Denom = 0.0;
for (int count = 0; count < Length; count++) {
Num += (1.0 + count) * P(s + count);
Denom += P(s + count);
}
if (Denom != 0.0) {
CG[s] = -Num / Denom + (Length + 1.0) / 2.0;
} else {
CG[s] = 0.0;
}
double hh = CG[s], ll = CG[s];
for (int i = 0; i < Length; i++) {
double tmp = CG[s + i];
hh = MathMax(hh, tmp);
ll = MathMin(ll, tmp);
}
Value1[s] = 0.0;
if (hh != ll) {
Value1[s] = (CG[s] - ll) / (hh - ll);
}
Value2[s] = (4.0 * Value1[s] + 3.0 * Value1[s + 1] + 2.0 * Value1[s + 2] + Value1[s + 3]) / 10.0;
FisherCG[s] = 0.5 * MathLog((1.0 + 1.98 * (Value2[s] - 0.5)) / (1.0 - 1.98 * (Value2[s] - 0.5)));
Trigger[s] = FisherCG[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: