//+------------------------------------------------------------------+
//| Leading.mq4 |
//| |
//| Leading |
//| |
//| 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_chart_window
#property indicator_buffers 2
#property indicator_color1 Red
#property indicator_color2 Blue
extern double Alpha1 = 0.25;
extern double Alpha2 = 0.33;
double NetLead[];
double Lead[];
double EMA[];
int buffers = 0;
int drawBegin = 0;
int init() {
drawBegin = 16;
initBuffer(NetLead, "Lead", DRAW_LINE);
initBuffer(EMA, "EMA", DRAW_LINE);
initBuffer(Lead);
IndicatorBuffers(buffers);
IndicatorShortName("Leading [" + DoubleToStr(Alpha1, 2) + ", " + DoubleToStr(Alpha2, 2) + "]");
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--) {
Lead[s] = 2.0 * P(s) + (Alpha1 - 2.0) * P(s + 1) + (1.0 - Alpha1) * Lead[s + 1];
NetLead[s] = Alpha2 * Lead[s] + (1 - Alpha2) * NetLead[s + 1];
EMA[s] = 0.5 * P(s) + 0.5 * EMA[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: