[ARCHIVE] Any rookie question, so as not to clutter up the forum. Professionals, don't pass by. Nowhere without you - 3. - page 268

[ilunga]

Bora:

Hello!

Please advise, if it's not difficult: how to write EA results to file without deleting previous entries. I use function FileHandle=FileOpen(FileName,FILE_CSV|FILE_READ|FILE_WRITE,";"); but only last record is saved, at new tick the old record is reset or deleted.

After opening move pointer to the end of the file:

FileSeek(handle, 0, SEEK_END);

[Victor Nikolaev]

Vovo4ka:

I want to write an indicator to display the closing price ratio with a period of 51 and 34 ... but something got confused ... how to display what would be visible on the entire history ... look at pliz ...

#property indicator_separate_window
#property indicator_buffers 1
#property indicator_color1 Teal

//---- input parameters
extern int Nom1=51;
extern int Nom2=34;
extern int CountBars=3000;

double MomBuffer[];
//+------------------------------------------------------------------+
//| expert initialization function                                   |
//+------------------------------------------------------------------+
int init()
  {
//---- indicator line
   SetIndexBuffer(0, MomBuffer);
   SetIndexStyle(0,DRAW_LINE);
   
//----
   return(0);
  }

//+------------------------------------------------------------------+
//| expert start function                                            |
//+------------------------------------------------------------------+
int start()
{
   if (CountBars>Bars) CountBars=Bars;

   int i,counted_bars=IndicatorCounted();
   double Sum,Sum1,Sum2, otn;
   int limit=Bars-counted_bars-1;
   if (limit>1) limit = CountBars
     
   for (i=limit;i>=0; i--)
   { 
      sum1=iMA(NULL, 0, Nom1, 0, MODE_SMA, PRICE_CLOSE, i);
      sum2=iMA(NULL, 0, Nom2, 0, MODE_SMA, PRICE_CLOSE, i);
      MomBuffer[i]=0;
      if (sum2>0) MomBuffer[i]=sum1/sum2;
   }
   return(0);
}
//+------------------------------------------------------------------+

[Vadim Zhunko]

zatro:
I have the following question: How to switch timeframes simultaneously on several currency pairs (simultaneously). Thank you in advance.

There is no such a button. But it can be done programmatically. However, it will never happen literally at the same time. It will always happen in different clock cycles of the processor.

[Boris]

Dear professionals!

What am I doing wrong again? I want to try this indicator in my EA, but it doesn't give any readings in the comments or in the printout, or rather it does, but nothing:

  double Roc = iCustom(NULL,0,"ROC",12,1,0);

Please check it!

[---]

borilunad:

Dear professionals!

What am I doing wrong again? I want to try this indicator in my EA, but it doesn't give any readings in the comments or in the printout, or rather it does, but nothing:

Please check it!

which indicator?

[Boris]

sergeev:

which indicator?

Price Rate of Change

But it's already working! Put 1 at the end as the EA works on bar opening. Sorry for the inconvenience! Thank you!

[oper11]

The indicator forms several hundreds of OBJ_TRENDsegments on the history interval .You need to output the difference of values (OBJPROP_TIME2 - OBJPROP_TIME1) for each object into an array.

Question: is there a direct access to the object property storage or should I loop through all the objects to get the required data? Thanks for the answer, sorry if it's a silly question!

[[Deleted]]

Vinin:

Thank you very much)))

[bora]

ilunga:

after opening, move pointer to end of file:

FileSeek(handle, 0, SEEK_END);

Thank you

[Юсуфходжа]

Again I am unable to register on mql5, what should I do?