Any questions from newcomers on MQL4 and MQL5, help and discussion on algorithms and codes - page 2

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Artyom Trishkin:

Not to call from another indicator :)

Or show how you do it.

I call it from this function


double GetPriceFractal(string symbol, ENUM_TIMEFRAMES timeframe, int mode_fractal, int count_find, int number_fractal, int &bar_fractal, int shift) {
   int n=0;
   for(int i=shift; i<count_find; i++) {
      //double price_fractal=iFractals(symbol,timeframe,mode_fractal,i);
      double price_fractal=NormalizeDouble(iCustom(symbol,timeframe,"X-bars",InpLeftSide,InpRightSide,mode_fractal,i),Digits);
      if(price_fractal>0) {
         n++;
         if(n==number_fractal) {
            bar_fractal=i;
            return(price_fractal);
            }
         }
      }
   return(EMPTY_VALUE);
}

And it in its turn from this

bool CheckOnePrices(string symbol, ENUM_TIMEFRAMES timeframe, int mode_fractal, int count_find, int count_fractals, int bar_fractal, double match_price, int delta_points, int shift) {
   if(count_fractals<1) return(false);
     double pt=SymbolInfoDouble(symbol,SYMBOL_POINT);
   int    n=1, dg=(int)SymbolInfoInteger(symbol,SYMBOL_DIGITS);
   for(int i=n; i<=count_fractals; i++) {
      double price_fractal=GetPriceFractal(symbol,timeframe,mode_fractal,count_find,n,bar_fractal,shift);
      double result_compare=fabs(NormalizeDouble(price_fractal-match_price,dg));
      if(result_compare<delta_points*pt) {
         if(mode_fractal==0) BufferFractalUp[bar_fractal]=price_fractal;
         else BufferFractalDn[bar_fractal]=price_fractal;
        /// Print("Цена бара с фракталом ",n," совпала с проверяемой ценой, возвращаем true");
         return(true);
         }
      n++;
      }
   return(false);
}

This is it in OnCalculate()

if(CheckOnePrices(Symbol(),PERIOD_CURRENT,0,rates_total,numFractals,bar,low[i],delta,i+1)) { BufferPointDn[i]=low[i]-distanc*Point;}
 
mila.com:

Calling from this function


double GetPriceFractal(string symbol, ENUM_TIMEFRAMES timeframe, int mode_fractal, int count_find, int number_fractal, int &bar_fractal, int shift) {
   int n=0;
   for(int i=shift; i<count_find; i++) {
      //double price_fractal=iFractals(symbol,timeframe,mode_fractal,i);
      double price_fractal=NormalizeDouble(iCustom(symbol,timeframe,"X-bars",InpLeftSide,InpRightSide,mode_fractal,i),Digits);
      if(price_fractal>0) {
         n++;
         if(n==number_fractal) {
            bar_fractal=i;
            return(price_fractal);
            }
         }
      }
   return(EMPTY_VALUE);
}

Well... you don't call it correctly - it only has two parameters in the settings, and you put 3 after the name.

And why are you normalizing it? There's no need for it.

 
mila.com:

I call it from this function


double GetPriceFractal(string symbol, ENUM_TIMEFRAMES timeframe, int mode_fractal, int count_find, int number_fractal, int &bar_fractal, int shift) {
   int n=0;
   for(int i=shift; i<count_find; i++) {
      //double price_fractal=iFractals(symbol,timeframe,mode_fractal,i);
      double price_fractal=NormalizeDouble(iCustom(symbol,timeframe,"X-bars",InpLeftSide,InpRightSide,mode_fractal,i),Digits);
      if(price_fractal>0) {
         n++;
         if(n==number_fractal) {
            bar_fractal=i;
            return(price_fractal);
            }
         }
      }
   return(EMPTY_VALUE);
}

Note, that in mode_fractal you have to write the buffer number of this custom indicator - for the upper 0, for the lower 1. Otherwise, in the standard fractals, the identifier values for fractals do not coincide with buffer values of this custom indicator:

Standard fractals:

Constant

Value

Description

MODE_UPPER

1

Upper line

MODE_LOWER

2

Bottom line


Buffers of the custom indicator:

0 Upper line
1 Bottom line

 
Artyom Trishkin:

Well... you don't call it correctly - it only has two parameters in the settings and you put 3 after the name.

And why are you normalising it? You don't need it here.

mode_fractal is upper or lower fractal, you can't do without it.

The zero is written after the period

 
mila.com:

mode_fractal is upper or lower fractal, as without it.

zero is inscribed after the period

I wrote above that the values for the standard indicator and your custom one do not match.
 
Artyom Trishkin:
I wrote above that the values for the standard indicator and your custom one do not match.
Wrong - they do. You need to look deeper...
 
Why is there no Fibonacci in Meta Trader 4 but in the description?
 
SLANDOV:
Why is there no Fibonacci in Meta Trader 4 but in the description?
How come it is not there? There is: Insert menu item --> Fibonacci
 
Artyom Trishkin:
What do you mean, no? There is: "Insert" menu item --> "Fibonacci"
MetaTrader4 from PlayMarket
 
SLANDOV:
MetaTrader4 from PlayMarket
Unfortunately I can't see MT4 on my Android or iOS device at the moment...
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