Accessing High[] array from outside of OnCalculate() indicator function?

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Hi, sorry for my newbie question, i try to explore mql5 envronment. Here is the my question, thanks in advance :

is anyway to get High[] array outside of OnCalculate in indicator ? 

When i write like this, array is out of range because the WHOLE_ARRAY return the -1 value. : 

double High[];
int count=WHOLE_ARRAY;  
ArraySetAsSeries(High,true);
CopyHigh(_Symbol,_Period,0,count,High);
 

  1. You are trying to fill an array using WHOLE_ARRAY. The array has no size. You've got it backwards. Fill then process.

    Constant Description Usage
    WHOLE_ARRAY Means the number of items remaining until the end of the array, i.e., the entire array will be processed Other Constants

  2. Perhaps you should read the manual, including the examples. CopyHigh - Timeseries and Indicators Access - MQL5 Reference - Reference on algorithmic/automated trading language for MetaTrader 5
       How To Ask Questions The Smart Way. 2004
          How To Interpret Answers.
             RTFM and STFW: How To Tell You've Seriously Screwed Up.

 

You can pass the High array to any function that is supposed to do the calculations like so:

//+------------------------------------------------------------------+
//| Calculate maximum from given array                               |
//+------------------------------------------------------------------+
double calculateMaximum(const double &arr[])
  {
   int i = ArrayMaximum(arr);
   return arr[i];
  }
//+------------------------------------------------------------------+
//| 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[])
  {
   double highestHigh = calculateMaximum(high);
   ...
 
I really appreciate for your both answer , i fixed the code now and also i understand what i am doing . Thank you
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