Array out of range error

[Martin]

a

[Keith Watford]

Please highlight the line where you are getting the error.

[Vladimir Karputov]

Martin :

Hi guys!

I am working on an EA with simple entry criteria, however, I am getting the " array out of range " error at row 104.

Does anyone know how to solve this?

Thanks,

Martin

If there is an indicator buffer, then you need to assign an array to the indicator buffer.

Example:

//+------------------------------------------------------------------+
//|                                                  Accelerator.mq5 |
//|                   Copyright 2009-2020, MetaQuotes Software Corp. |
//|                                              http://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright   "2009-2020, MetaQuotes Software Corp."
#property link        "http://www.mql5.com"
#property description "Accelerator/Decelerator"

//--- indicator settings
#property indicator_separate_window
#property indicator_buffers 6
#property indicator_plots   1
#property indicator_type1   DRAW_COLOR_HISTOGRAM
#property indicator_color1  Green,Red
#property indicator_width1  2
#property indicator_label1  "AC"
//--- indicator buffers
double ExtACBuffer[];
double ExtColorBuffer[];
double ExtFastBuffer[];
double ExtSlowBuffer[];
double ExtAOBuffer[];
double ExtSMABuffer[];
//--- handles for MAs
int    ExtFastSMAHandle;
int    ExtSlowSMAHandle;
//--- bars minimum for calculation
#define DATA_LIMIT  37   // FAST_PERIOD-1 + SLOW_PERIOD-1
//--- MA periods
#define FAST_PERIOD 5
#define SLOW_PERIOD 34
//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
void OnInit()
  {
//--- indicator buffers mapping
   SetIndexBuffer(0,ExtACBuffer,INDICATOR_DATA);
   SetIndexBuffer(1,ExtColorBuffer,INDICATOR_COLOR_INDEX);
   SetIndexBuffer(2,ExtFastBuffer,INDICATOR_CALCULATIONS);
   SetIndexBuffer(3,ExtSlowBuffer,INDICATOR_CALCULATIONS);
   SetIndexBuffer(4,ExtAOBuffer,INDICATOR_CALCULATIONS);
   SetIndexBuffer(5,ExtSMABuffer,INDICATOR_CALCULATIONS);
//--- set accuracy
   IndicatorSetInteger(INDICATOR_DIGITS,_Digits+2);
//--- sets first bar from what index will be drawn
   PlotIndexSetInteger(0,PLOT_DRAW_BEGIN,DATA_LIMIT);
//--- name for DataWindow
   IndicatorSetString(INDICATOR_SHORTNAME,"AC");
//--- get handles
   ExtFastSMAHandle=iMA(NULL,0,FAST_PERIOD,0,MODE_SMA,PRICE_MEDIAN);
   ExtSlowSMAHandle=iMA(NULL,0,SLOW_PERIOD,0,MODE_SMA,PRICE_MEDIAN);
  }

[Martin]

Vladimir Karputov:

If there is an indicator buffer, then you need to assign an array to the indicator buffer.

Example:

Thanks for the replay.

The issue is with the two arrays storing the close prices of the last 2 candles (highlighted in yellow).

D1Close is supposed to output the price of the last candle.

D2 is supposed to output the price of the second to last candle.

The idea is that the EA would go long after a bull candle and short after a bear candle.

So it would need a CopyBuffer, would it?

[Martin]

Keith Watford:
Please highlight the line where you are getting the error.

I have now highlighted in yellow the two lines where I am getting the error.

[Vladimir Karputov]

Martin :

I have now highlighted in yellow the two lines where I am getting the error.

Well, where is your MQL5 code ???