PriceChannel_Stop_v1
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This script is a technical analysis tool designed to identify market trends and provide visual cues for potential price "stops" or reversal points. It operates by analyzing price volatility over a specific period and calculating dynamic boundaries that shift as the market moves.
Core Logic Overview
The tool functions by evaluating a specific window of historical data (the "Channel Period") to determine the high and low prices reached during that timeframe. Using these extremes, it establishes a risk-based boundary on both the top and bottom of the price action.
Essentially, the script looks at how much the price moved in the past and creates a "buffer zone" based on a percentage of that movement (the "Risk" factor). This allows the tool to distinguish between normal market noise and significant shifts in direction.
Trend Identification
The script identifies the current market trend by comparing the closing price of a candle against these calculated boundaries:
- Bullish Trend: If the closing price breaks above the upper risk boundary, the script recognizes an upward trend.
- Bearish Trend: If the closing price breaks below the lower risk boundary, the script recognizes a downward trend.
Dynamic Boundary Behavior
One of the key features of this logic is its "memory" of trend direction:
- In an Upward Trend, the tool focuses on the lower support level. It ensures that this support line does not move down as the price climbs, effectively "locking" the support in place until a significant breakdown occurs.
- In a Downward Trend, the tool focuses on the upper resistance level. It ensures that this resistance line does not move up as the price drops, maintaining a consistent ceiling for the bearish move.
Visual Signals and Customization
The script provides three main layers of visual information:
- Trend Lines: It draws continuous lines representing the current support or resistance levels based on the detected trend.
- Signal Markers: Depending on the user's settings, it can place specific markers (arrows) to highlight the exact moment a trend shift is confirmed.
- Buffer Management: The logic includes an "on/off" capability for these signals, allowing users to choose whether they want to see just the continuous trend lines or the specific point-in-time alerts.
In summary, this tool helps traders visualize where price might "stop" or reverse by creating dynamic boundaries that adjust to market volatility while maintaining a strict memory of the prevailing trend direction.
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PriceChannel_Stop_v1
//+------------------------------------------------------------------+
//| PriceChannel_Stop_v1.mq4 |
//| Copyright © 2005, TrendLaboratory Ltd. |
//| E-mail: igorad2004@list.ru |
//+------------------------------------------------------------------+
#property copyright "Copyright © 2005, TrendLaboratory Ltd."
#property link "E-mail: igorad2004@list.ru"
#property indicator_chart_window
#property indicator_buffers 6
#property indicator_color1 Aqua
#property indicator_width1 1
#property indicator_color2 Magenta
#property indicator_width2 1
#property indicator_color3 Aqua
#property indicator_width3 1
#property indicator_color4 Magenta
#property indicator_width4 1
#property indicator_color5 Aqua
#property indicator_color6 Magenta
//---- input parameters
extern int ChannelPeriod=9;
extern double Risk=0.30;
extern int Signal=1;
extern int Line=1;
extern int Nbars=10000;
//---- indicator buffers
double UpTrendBuffer[];
double DownTrendBuffer[];
double UpTrendSignal[];
double DownTrendSignal[];
double UpTrendLine[];
double DownTrendLine[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- indicator line
SetIndexBuffer(4,UpTrendLine);
SetIndexBuffer(5,DownTrendLine);
SetIndexStyle(0,DRAW_ARROW);
SetIndexStyle(1,DRAW_ARROW);
SetIndexStyle(2,DRAW_ARROW);
SetIndexStyle(3,DRAW_ARROW);
SetIndexStyle(4,DRAW_LINE);
SetIndexStyle(5,DRAW_LINE);
SetIndexArrow(0,160);
SetIndexArrow(1,160);
SetIndexArrow(2,160);
SetIndexArrow(3,160);
//---- name for DataWindow and indicator subwindow label
short_name="PriceChannel_Stop_v1("+ChannelPeriod+")";
IndicatorShortName(short_name);
SetIndexLabel(4,"UpTrend Line");
SetIndexLabel(5,"DownTrend Line");
//----
SetIndexDrawBegin(0,ChannelPeriod);
SetIndexDrawBegin(1,ChannelPeriod);
SetIndexDrawBegin(2,ChannelPeriod);
SetIndexDrawBegin(3,ChannelPeriod);
SetIndexDrawBegin(4,ChannelPeriod);
SetIndexDrawBegin(5,ChannelPeriod);
//----
return(0);
}
//+------------------------------------------------------------------+
//| PriceChannel_Stop_v1 |
//+------------------------------------------------------------------+
int start()
{
int i,shift,trend;
double high, low, price;
double smax[10000],smin[10000],bsmax[10000],bsmin[10000];
for (shift=Nbars-1;shift>=0;shift--)
{
UpTrendBuffer[shift]=EMPTY_VALUE;
DownTrendBuffer[shift]=EMPTY_VALUE;
UpTrendSignal[shift]=EMPTY_VALUE;
DownTrendSignal[shift]=EMPTY_VALUE;
UpTrendLine[shift]=EMPTY_VALUE;
DownTrendLine[shift]=EMPTY_VALUE;
}
for (shift=Nbars-ChannelPeriod-1;shift>=0;shift--)
{
high=High[shift]; low=Low[shift]; i=shift-1+ChannelPeriod;
while(i>=shift)
{
price=High[i];
if(high<price) high=price;
price=Low[i];
if(low>price) low=price;
i--;
}
smax[shift]=high;
smin[shift]=low;
bsmax[shift]=smax[shift]-(smax[shift]-smin[shift])*Risk;
bsmin[shift]=smin[shift]+(smax[shift]-smin[shift])*Risk;
if (Close[shift]>bsmax[shift+1]) trend=1;
if (Close[shift]<bsmin[shift+1]) trend=-1;
if(trend>0 && bsmin[shift]<bsmin[shift+1]) bsmin[shift]=bsmin[shift+1];
if(trend<0 && bsmax[shift]>bsmax[shift+1]) bsmax[shift]=bsmax[shift+1];
if (trend>0)
{
if (Signal>0 && UpTrendBuffer[shift+1]==-1.0)
{
UpTrendSignal[shift]=bsmin[shift];
if(Line>0) UpTrendLine[shift]=bsmin[shift];
}
else
{
UpTrendBuffer[shift]=bsmin[shift];
if(Line>0) UpTrendLine[shift]=bsmin[shift];
UpTrendSignal[shift]=-1;
}
if (Signal==2) UpTrendBuffer[shift]=0;
DownTrendBuffer[shift]=-1.0;
DownTrendLine[shift]=EMPTY_VALUE;
}
if (trend<0)
{
if (Signal>0 && DownTrendBuffer[shift+1]==-1.0)
{
DownTrendSignal[shift]=bsmax[shift];
if(Line>0) DownTrendLine[shift]=bsmax[shift];
}
else
{
DownTrendBuffer[shift]=bsmax[shift];
if(Line>0)DownTrendLine[shift]=bsmax[shift];
DownTrendSignal[shift]=-1;
}
if (Signal==2) DownTrendBuffer[shift]=0;
UpTrendBuffer[shift]=-1.0;
UpTrendLine[shift]=EMPTY_VALUE;
}
}
return(0);
}
//+------------------------------------------------------------------+
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