//+------------------------------------------------------------------+
//| Sinewave.mq4 |
//| |
//| Sinewave |
//| |
//| 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_minimum -1
#property indicator_maximum 1
#property indicator_level1 0
double Sine[];
double LeadSine[];
double Cycle[];
double Smooth[];
extern double Alpha = 0.07;
int buffers = 0;
int drawBegin = 0;
double tempReal, rad2Deg, deg2Rad;
int init() {
drawBegin = 8;
initBuffer(Sine, "Sine", DRAW_LINE);
initBuffer(LeadSine, "Lead", DRAW_LINE);
initBuffer(Cycle);
initBuffer(Smooth);
IndicatorBuffers(buffers);
IndicatorShortName("Sinewave [" + DoubleToStr(Alpha, 2) + "]");
tempReal = MathArctan(1.0);
rad2Deg = 45.0 / tempReal;
deg2Rad = 1.0 / rad2Deg;
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--) {
Smooth[s] = (P(s) + 2.0 * P(s + 1) + 2.0 * P(s + 2) + P(s + 3)) / 6.0;
Cycle[s] = (1.0 - 0.5 * Alpha) * (1.0 - 0.5 * Alpha) * (Smooth[s] - 2.0 * Smooth[s + 1] + Smooth[s + 2])
+ 2.0 * (1.0 - Alpha) * Cycle[s + 1]
- (1.0 - Alpha) * (1.0 - Alpha) * Cycle[s + 2];
double period = iCustom(0, 0, "CyclePeriod", Alpha, 0, s);
int DCPeriod = MathFloor(period);
double RealPart = 0.0;
double ImagPart = 0.0;
for (int count = 0; count < DCPeriod; count++) {
RealPart += MathSin(deg2Rad * 360.0 * count / DCPeriod) * Cycle[s + count];
ImagPart += MathCos(deg2Rad * 360.0 * count / DCPeriod) * Cycle[s + count];
}
double DCPhase;
if (MathAbs(ImagPart) > 0.001) {
DCPhase = rad2Deg * MathArctan(RealPart / ImagPart);
}
if (MathAbs(ImagPart) <= 0.001) {
if (RealPart >= 0.0) {
DCPhase = 90.0;
} else {
DCPhase = -90.0;
}
}
DCPhase += 90.0;
if (ImagPart < 0) {
DCPhase += 180.0;
}
if (DCPhase > 315.0) {
DCPhase -= 360.0;
}
Sine[s] = MathSin(DCPhase * deg2Rad);
LeadSine[s] = MathSin((DCPhase + 45.0) * deg2Rad);
}
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:
CyclePeriod
Order Management characteristics:
Other Features: