acc_dist_graph_jpy
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This tool is designed as a specialized visual indicator for the MetaTrader platform, specifically created to help traders monitor market movements involving the Japanese Yen (JPY). Rather than looking at a single currency pair in isolation, this script aggregates data from four major global currencies—the US Dollar (USD), Euro (EUR), British Pound (GBP), and Swiss Franc (CHF)—against the Yen.
Core Functionality
The primary purpose of the logic is to calculate a "cumulative" view of how these four major currencies are performing relative to the Japanese Yen. It automates the process of pulling live data from four different currency pairs simultaneously:
- USD/JPY
- EUR/JPY
- GBP/JPY
- CHF/JPY
How the Logic Works
The script follows a specific sequence to generate its visual output:
- Data Gathering: The tool looks back at a specific period of historical data (defined by the "MomPeriod" setting). During this timeframe, it captures the price action for all four currency pairs listed above.
- Aggregation: Instead of showing these four currencies as separate lines, the script mathematically combines them. It takes the values of the USD, EUR, GBP, and CHF movements against the Yen and sums them together.
- Inversion and Mapping: The logic applies a negative transformation to this combined sum. This creates a unified "Accumulation/Distribution" style graph that represents the collective pressure of these four major currencies on the Japanese Yen.
- Visual Representation: The final result is displayed as a single line in a separate window on your chart. By looking at this single line, you can see the combined momentum of the world's major currencies against the Yen in one glance, rather than having to manage and interpret four different charts individually.
Summary for the User
Essentially, this tool acts as a "summary" indicator. It simplifies complex market data by merging the trends of four different pairs into one single visual path. It is intended for traders who want to see the broader currency environment involving the Yen without cluttering their screen with multiple independent charts.
#property copyright "Copyright © 2009, sHrung."
#property link "http://www.something.com/"
#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Tomato
//---- input parameters
extern int MomPeriod=1000;
//---- buffers
//--- currencies
double JPY[];
//---
double ac_usdjpy[];
double ac_eurjpy[];
double ac_gbpjpy[], ac_chfjpy[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
string short_name;
//---- additional buffers used for counting.
IndicatorBuffers(5);
//---- indicator line
SetIndexStyle(0,DRAW_LINE);
SetIndexBuffer(0,JPY);
SetIndexBuffer(1,ac_eurjpy);
SetIndexBuffer(2,ac_gbpjpy);
SetIndexBuffer(3,ac_chfjpy);
SetIndexBuffer(4,ac_usdjpy);
//---- name for DataWindow and indicator subwindow label
short_name="Accu/Dist Graph JPY ("+MomPeriod+")";
IndicatorShortName(short_name);
SetIndexLabel(0,"JPY");
//----
SetIndexDrawBegin(0,MomPeriod);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Four legs |
//+------------------------------------------------------------------+
int start()
{
int i,counted_bars=IndicatorCounted();
int a, b, c, d, e, f, g, h, ii, j;
//----
if(Bars<=MomPeriod) return(0);
//---- initial zero
if(counted_bars<1)
for(i=1;i<=MomPeriod;i++) JPY[Bars-i]=0.0;
//----
int limih=Bars-counted_bars;
if(counted_bars>1) limih++;
for(h=0; h<MomPeriod; h++)
ac_gbpjpy[h] = iAD("GBPJPY",0,h);
int limic=Bars-counted_bars;
if(counted_bars>1) limic++;
for(c=0; c<MomPeriod; c++)
ac_usdjpy[c] = iAD("USDJPY",0,c);
int limif=Bars-counted_bars;
if(counted_bars>1) limif++;
for(f=0; f<MomPeriod; f++)
ac_eurjpy[f] = iAD("EURJPY",0,f);
int limii=Bars-counted_bars;
if(counted_bars>1) limii++;
for(ii=0; ii<MomPeriod; ii++)
ac_chfjpy[ii] = iAD("CHFJPY",0,ii);
//----
//----
i=Bars-MomPeriod-1;
if(counted_bars>=MomPeriod) i=Bars-counted_bars-1;
while(i>=0)
{
JPY[i] = - ac_usdjpy[i] - ac_eurjpy[i] - ac_gbpjpy[i] - ac_chfjpy[i];
i--;
}
return(0);
}
//+------------------------------------------------------------------+
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