How to save currency pairs symbols and use them later? | Forex Factory

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How to save currency pairs symbols and use them later?

  • #1
  • First Post: Apr 24, 2014 4:01am Apr 24, 2014 4:01am
Hi guys.

I have problem to find solution how to save more currency pairs in one step and use it later when i need it.
For variables it is simple.
exampleTime = iTime (....) etc.
and when I use later exampleTime I will get exact value what I have saved before.
But how to do this with currencies which are strings and not simple numbers?

for example I want save EU/GU/EG after some condition and use these pairs later when another conditions must be check in thiese pairs.
How I will recall these pairs later in my code?

Please if someone can help it will be great. I can;t move in my code further if I will not solve this problem.
Again many thanks
  • #2
  • Apr 24, 2014 4:10am Apr 24, 2014 4:10am
Quick example:

Inserted Code
string symb[30];

Inserted Code
//then you save the needed symbols (you can even do this in a loop)
symb[0] = "EURUSD";
symb[1] = "GBPUSD";
symb[2] = "USDJPY";
MT4/MT5 EAs/Indicators/Alerts coder
  • #3
  • Apr 24, 2014 4:48am Apr 24, 2014 4:48am
Quoting FerruFx
Quick example: string symb[30]; //then you save the needed symbols (you can even do this in a loop) symb[0] = "EURUSD"; symb[1] = "GBPUSD"; symb[2] = "USDJPY";
Many THX
and what about reset these string variables?
Because with int or double variables when I put
exampleTime = 0;
after condition loop I know that after next tick calculation code will use fresh new variable and not old.
Is there some way how to reset also string variable?
For example I have two "if condition loops" and in first I will save currencies which met first condition. Then I will use only these currencies to check if these saved currencies met second "if condition loop". But when I will not reset these string variables after second "if condition loop" code will always use old saving. correct?

THX
  • #4
  • Apr 24, 2014 4:58am Apr 24, 2014 4:58am
Inserted Code
symb[0] = "";
symb[1] = "";
symb[2] = "";
MT4/MT5 EAs/Indicators/Alerts coder
  • #5
  • Last Post: Apr 25, 2014 4:49am Apr 25, 2014 4:49am
Quoting FerruFx
symb[0] = ""; symb[1] = ""; symb[2] = "";

Hi Ferru

I have add this idea to my code but looks to me that I have something wrong there...
please can you check my idea if it is correct? (please note that I have put here only part of my code)
I get in ALERT 1 all pairs which met "MinVolumeBull" condition.
Then in ALERT 2 I am expecting that only pairs that met "MinVolumeBull" will be use but nope.
I get ALERT 2 but "MinVolumeBull" are not on same currency pairs like in ALERT 1

For example ALERT 1 write me that first part of conditions were on EURUSD, EURJPY and GBPUSD
but after I receive ALERT 2 it will write me that second part of conditions were on EURUSD and EURGBP which is not correct because EURGBP was not on first part alert.

Inserted Code
extern string symbol1  = "EURUSDm";
extern string symbol2  = "EURAUDm";
extern string symbol3  = "EURJPYm";
extern string symbol4  = "EURGBPm";
extern string symbol5  = "GBPUSDm";
string PairString, PairStringNoSupplyClose, PairStringNoDemandClose, MinVolumeBear;
string symbol22, symbol33, symbol44, symbol55;
int LastAlert = 3;
//+------------------------------------------------------------------+
int start()
{
// FIRST PART OF CONDITIONs
if(MinVolumeBull(symbol1) >= 1)
        {
        PairString="BEAR PAIRS: ";//reset pairstring
if((MinVolumeBull(symbol2) + MinVolumeBull(symbol3) + MinVolumeBull(symbol4) + MinVolumeBull(symbol5)) >= 1)   
               {  
               if(LastAlert!=1)
                  {
               LastAlert=1;   
               mStoredMinVolumeTime = iTime(NULL, mTF, 1);
               Alert(Symbol() + Period() + "M" + PairString + " LowVoluem candle bullish" );  // ALERT 1
               mPriceAction = 1;
                  }
               }
        }         
// SECOND PART of CONDITIONs     
if(mPriceAction == 1)

                      {
                      PairStringNoDemandClose=" BEARISH: ";//reset pairstring
                           if(NoDemandClose(symbol1) >= 1)
                           if(MinVolumeBull(symbol2) != 0) {symbol22 = symbol2;}            // if condition on EURAUDm are there ( is equal value 1) then code will
                           if(MinVolumeBull(symbol3) != 0) {symbol33 = symbol3;}            // write this pair to new symbol22 which I will use later
                           if(MinVolumeBull(symbol4) != 0) {symbol44 = symbol4;}            // this is my idea how to save correct pair for later use but it can
                           if(MinVolumeBull(symbol5) != 0) {symbol55 = symbol5;}            // be completely wrong....               
                          
                      if((NoDemandClose(symbol22) + NoDemandClose(symbol33) + NoDemandClose(symbol44) + NoDemandClose(symbol55)) >= 1 )
                        {
                        if(iTime(NULL, mTF, 0) > mAlertTime)
                             {
                             Alert(Symbol() + Period() + "M" + PairStringNoDemandClose + " No Demand Cross 1M Testing EU EJ GU EG OR in price level" );  // ALERT 2
                             PlaySound("Alert.wav");
                             mAlertTime = iTime(NULL, mTF, 0);
                             mPriceAction = 0;
                             symbol22 = "";            // reset symbols
                             symbol33 = "";
                             symbol44 = "";
                             symbol55 = "";
                             }
                         }
                      }
 
//-----------------------------------------------------------------------------  
int NoDemandClose(string sym)
   {
      if((iClose(sym, mTF, 1) < iLow(sym, mTF, iBarShift(sym, mTF, mStoredMinVolumeTime))) && (iClose(sym, mTF, 1) < iOpen(sym, mTF, 1))) return(1);
      PairStringNoDemandClose = PairStringNoDemandClose + ", "+sym;
      return(0);
   }      
//----------------------------------------------------------------------------- 
int MinVolumeBull(string sym)
    {    
     if(iVolume(sym, mTF, 1) < (iVolume(sym, mTF, iLowest(sym, mTF, MODE_VOLUME, 4, 2))))
     if(iClose(sym, mTF, 1) > iOpen(sym, mTF, 1))
     {
     PairString = PairString + ", "+sym;
     return(1);
     }
     return(0);
     }
//-----------------------------------------------------------------------------
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