JMA_Angle
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This tool is designed to help traders visualize the strength and direction of a market trend by calculating the "angle" or slope of a specific moving average. Instead of just showing you where the price is moving, it focuses on how aggressively that movement is happening.
How It Works
The logic behind this script operates in three main stages:
1. Data Collection The tool looks at a specialized moving average (the JMA) and compares two different points in time simultaneously. It identifies a "Start" point and an "End" point based on the settings provided. By looking at these two specific coordinates, the script can determine how much the average has shifted over that specific distance.
2. Angle Calculation The script takes the difference between those two points and calculates an "angle." To ensure this angle is visible and meaningful on your trading screen, it applies a multiplier (a factor) that adjusts based on the currency pair you are trading—for example, it automatically recognizes the different decimal scales of JPY pairs versus standard currencies.
3. Visual Filtering Rather than showing every tiny wiggle in the market, the script uses a "Threshold" system to filter out noise:
- Bullish Momentum: If the upward angle is steeper than your chosen threshold, it highlights the movement as a positive trend (UpBuffer).
- Bearish Momentum: If the downward angle is steeper than your chosen threshold, it highlights it as a negative trend (DownBuffer).
- Neutral Zone: If the angle is shallow (smaller than the threshold), it treats the movement as neutral or sideways.
Summary for Traders
In simple terms, this indicator acts as a momentum filter. It ignores small price fluctuations and only alerts you when the moving average starts to tilt significantly in one direction. This helps you identify clear, strong trends while potentially filtering out "choppy" market behavior where the price is moving but not with any real force.
/*-----------------------------+
| |
| Shared by www.Aptrafx.com |
| |
+------------------------------*/
//+------------------------------------------------------------------+
//| JMA_Angle.mq4 |
//| Copyright © 2004, MetaQuotes Software Corp. |
//| http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2004, MetaQuotes Software Corp."
#property link "http://www.metaquotes.net/"
//---- indicator settings
#property indicator_separate_window
#property indicator_buffers 3
#property indicator_color1 LimeGreen
#property indicator_color2 Yellow
#property indicator_color3 FireBrick
#property indicator_width1 2
#property indicator_width2 2
#property indicator_width3 2
//---- indicator parameters
extern int JMA_Period=34;
extern double AngleTreshold=15;
extern int StartMAShift=4;
extern int EndMAShift=0;
//---- indicator buffers
double UpBuffer[];
double DownBuffer[];
double ZeroBuffer[];
double mFactor;
int ShiftDif;
string Sym;
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicator buffers mapping
IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS)+1);
//---- 3 indicator buffers mapping
if(!SetIndexBuffer(0,UpBuffer) &&
!SetIndexBuffer(1,DownBuffer) &&
!SetIndexBuffer(2,ZeroBuffer))
Print("cannot set indicator buffers!");
//---- drawing settings
SetIndexStyle(0,DRAW_HISTOGRAM,STYLE_SOLID);
SetIndexStyle(1,DRAW_HISTOGRAM,STYLE_SOLID);
SetIndexStyle(2,DRAW_HISTOGRAM,STYLE_SOLID);
SetIndexDrawBegin(0,JMA_Period);
IndicatorDigits(MarketInfo(Symbol(),MODE_DIGITS)+1);
//---- name for DataWindow and indicator subwindow label
IndicatorShortName("JMA_Angle("+JMA_Period+","+AngleTreshold+","+StartMAShift+","+EndMAShift+")");
SetIndexLabel(0,"JMA Angle");
if(EndMAShift >= StartMAShift)
{
Print("Error: EndMAShift >= StartMAShift");
StartMAShift = 6;
EndMAShift = 0;
}
mFactor = 100000.0;
Sym = StringSubstr(Symbol(),3,3);
if (Sym == "JPY") mFactor = 1000.0;
ShiftDif = StartMAShift-EndMAShift;
mFactor /= ShiftDif;
//---- initialization done
return(0);
}
//+------------------------------------------------------------------+
//| Moving Averages Convergence/Divergence |
//+------------------------------------------------------------------+
int start()
{
double ma1, ma2;
double fEndMA, fStartMA;
double fAngle;
int limit,i;
double angle;
int counted_bars=IndicatorCounted();
//---- check for possible errors
if(counted_bars<0)
return(-1);
if(counted_bars<1)
//---- last counted bar will be recounted
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
//---- main loop
for(i=0; i<limit; i++)
{
fEndMA=iCustom(NULL, 0, "JMA",JMA_Period,0,i+EndMAShift);
fStartMA=iCustom(NULL, 0, "JMA",JMA_Period,0,i+StartMAShift);
// 10000.0 : Multiply by 10000 so that the fAngle is not too small
// for the indicator Window.
fAngle = mFactor * (fEndMA - fStartMA)/2.0;
//Print (mFactor, fEndMA, fStartMA, fAngle);
DownBuffer[i] = 0.0;
UpBuffer[i] = 0.0;
ZeroBuffer[i] = 0.0;
if(fAngle > AngleTreshold)
{
UpBuffer[i] = fAngle;
}
else if (fAngle < -AngleTreshold)
{
DownBuffer[i] = fAngle;
}
else ZeroBuffer[i] = fAngle;
}
//---- done
return(0);
}
//+------------------------------------------------------------------+
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