Errors, bugs, questions - page 917

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Konstantin83:

When saving a csv file, the data is not split into columns. Even the script from the standard example outputs all the data in one column.

Specify the separator:

filehandle=FileOpen("fractals.csv",FILE_WRITE|FILE_CSV,",");
 
tol64:

Specify the separator:

Didn't work. When opening in Excel it says unknown file format and doesn't split the columns either. But if you don't specify a separator and don't specify a file extension, it also says unknown format, but the text is broken in columns...
 
Konstantin83:
Didn't work. When opening in Excel it says unknown file format and doesn't split columns either. But if you don't specify a separator and don't specify a file extension, it also says unknown format, but the text is broken into columns...

There's more to do like that:

filehandle=FileOpen("fractals.csv",FILE_WRITE|FILE_CSV|FILE_ANSI,",");
 
There's a glitch with the charts in Signals. Or is it just me?
 

Is it possible to create an indicator that will have a buffer line, e.g. close[] line and a comment at the top left? I tried to make a simple example so my terminal hangs

#property indicator_chart_window
#property indicator_buffers 1
#property indicator_plots   1
//--- plot Histogram
#property indicator_label1  "1"
#property indicator_type1   DRAW_LINE
#property indicator_color1  clrBlue
#property indicator_style1  STYLE_SOLID
#property indicator_width1  2
double MAbuf1[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- indicator buffers mapping
   ChartGetInteger(0,CHART_VISIBLE_BARS);
   SetIndexBuffer(0,MAbuf1,INDICATOR_DATA);
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const datetime &time[],
                const double &open[],
                const double &high[],
                const double &low[],
                const double &close[],
                const long &tick_volume[],
                const long &volume[],
                const int &spread[])
  {
//--- вычисления значений индикатора
   int start=0;
//--- если расчет уже производился на предыдущем запуске OnCalculate
   if(prev_calculated>0) start=prev_calculated-1; // установим начало расчетов с предпослденего бара
//--- заполняем индикаторный буфер значениями
   for(int i=start;i<rates_total;i++)
     {
      //----------------------Обнуляем буферы
      MAbuf1[i]=0;
      MAbuf1[i]=close[i];
      Comment("Work");


     }
//--- вернем значение prev_calculated для следующего вызова функции
   return(rates_total);
  }
 
Take the comment out of the loop - should make it easier.
 
Dima_S:
Take the comment out of the loop - should make it easier.
Thanks, didn't realise it would be such a burden on the system
 
When will the #resource option be applied to the indicator files? Does anyone know? I would really like to combine the whole project into one .ex5 file.
 
MoneyJinn:
When will the #resource option be applied to the indicator files? Does anyone know? I would like very much to combine the whole project into one .ex5 file.
They seem to have promised such a possibility, but did not say when.
 

Please explain why the second buffer (label2) is zero

#property indicator_chart_window
#property indicator_buffers 2
#property indicator_plots   2
//--- plot Label1
#property indicator_label1  "Label1"
#property indicator_type1   DRAW_LINE
#property indicator_color1  clrRed
#property indicator_style1  STYLE_SOLID
#property indicator_width1  1
//--- plot Label2
#property indicator_label2  "Label2"
#property indicator_type2   DRAW_LINE
#property indicator_color2  clrWhite
#property indicator_style2  STYLE_SOLID
#property indicator_width2  1
//--- indicator buffers
double ExtLineBuffer[];
double ExtLineBuffer2[];
int    InpMAPeriod=13;         // Period
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- indicator buffers mapping
   SetIndexBuffer(0,ExtLineBuffer,INDICATOR_DATA);
   SetIndexBuffer(1,ExtLineBuffer2,INDICATOR_DATA);
   PlotIndexSetDouble(0,PLOT_EMPTY_VALUE,0.0);
   
//---
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int OnCalculate(const int rates_total,
                const int prev_calculated,
                const int begin,
                const double &price[])
  {
//--- check for bars count
   if(rates_total<InpMAPeriod-1+begin)
      return(0);// not enough bars for calculation
//--- first calculation or number of bars was changed
   if(prev_calculated==0)
      ArrayInitialize(ExtLineBuffer,0);
//--- sets first bar from what index will be draw
      InpMAPeriod=20;
   int i,limit;
//--- first calculation or number of bars was changed
   if(prev_calculated==0)// first calculation
     {
      limit=InpMAPeriod+begin;
      //--- set empty value for first limit bars
      for(i=0;i<limit-1;i++) ExtLineBuffer[i]=0.0;
      //--- calculate first visible value
      double firstValue=0;
      for(i=begin;i<limit;i++)
         firstValue+=price[i];
      firstValue/=InpMAPeriod;
      ExtLineBuffer[limit-1]=firstValue;
      //ExtLineBuffer[i]=1;
     }
   else limit=prev_calculated-1;
//--- main loop
   for(i=limit;i<rates_total && !IsStopped();i++)
   ExtLineBuffer[i]=ExtLineBuffer[i-1]+(price[i]-price[i-InpMAPeriod])/InpMAPeriod;
   ExtLineBuffer2[i]=ExtLineBuffer[i];
//--- return value of prev_calculated for next call
   Comment(ExtLineBuffer[rates_total-1]);
   return(rates_total);
  }
//+------------------------------------------------------------------+

1) For some reason, the OnCalculate function has no problems with multiple buffers, where there are separate close, open, etc.

2) I would love to use it, but it fails to use the algorithm for calculation of moving averages which is described in the code above

ExtLineBuffer2[i] tried to assign different values including constants - always zero

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