MAY BE THAT A MINUTE OF YOUR TIME IS ONE MONTH TO TEAR MY HAIR

I try to Save the ZigZag indicator in a table, then creates a new array with non-zero points. It is very simple but I don 't do. I am a beginner in programming.

Here is the code that I wrote to accomplish this task:

extern int ExtDepth     = 15 ;
extern int ExtDeviation = 5 ;
extern int ExtBack      = 3 ;
//---- buffers

double Zig_Zag[] ;
double turn_level[] ;
int  turn_index[] ;
double sig[][] ;

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int init()
  {
//---- indicators
   IndicatorBuffers(4);

   SetIndexStyle(0,DRAW_HISTOGRAM);
   
   SetIndexBuffer(0,sig);
   SetIndexBuffer(1,Zig_Zag);
   SetIndexBuffer(2,turn_level);
   SetIndexBuffer(3,turn_index);

   
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator deinitialization function                       |
//+------------------------------------------------------------------+
int deinit()
  {
//----
   
//----
   return(0);
  }
//+------------------------------------------------------------------+
//| Custom indicator iteration function                              |
//+------------------------------------------------------------------+
int start()
 { 
   
   
   int  i , k , limit ,  counted_bars=IndicatorCounted();
   
   if(Bars < 0 ) return(0) ;
   
   limit = Bars - counted_bars ;
   
   if( limit > 0 )counted_bars-- ;
   
   // I would like to use a loop in order to save the ZIGZAG indicator in a array! But this poses problems!
  
   //the solution may be simple, but I have very weak notions of programming ...
   
   for( i = 0 ; i < limit ; i++ )
      { Zig_Zag[i] = iCustom(NULL , 0 , "ZigZag" , ExtDepth , ExtDeviation , ExtBack ,0 , i ); }
    /* 
    **I have tried to collect the output array in a file but it does not
    
    handle=FileOpen(FileName, FILE_CSV|FILE_WRITE, '\t');
    
    for( i = 0 ; i <limit ; i++ )
      { 
        Zig_Zag[i] = iCustom(NULL , 0 , "ZigZag" , 15 , 5 , 3 ,0 , i );
        FileWrite(handle,i , DoubleToStr(Zig_Zag[i],Digits) );    
       }
  
     FileClose(handle) ;
     
     **with this code; the file gets the data but I have no array
     
     handle=FileOpen(FileName, FILE_CSV|FILE_WRITE, '\t');
    
    for( i = 0 ; i <limit ; i++ )
      { 
        Zig_Zag = iCustom(NULL , 0 , "zigzagtest" , 15 , 5 , 3 ,0 , i );
        FileWrite(handle , i , Zig_Zag );    
       }
  
     FileClose(handle) ;
     */
   
   
   
   //the goal is to obtain two array corresponding levels and indices of price reversal ...
    
   k=0;
   for( i = 0 ; i< limit ; i++ )
      { if(Zig_Zag[i] != 0 )  { 
                                 turn_level[k] = Zig_Zag[i] ;
                                 turn_index[k] = i ;
                                 k ++ ;
                               }
       }
      
   int Nb_turn_pt = ArraySize(turn_level) ; // numbers of points turns 
   
    
      //  I have tested different way to obtain an indicator which gives the slope of the indicator ZigZag in a new array
       for( k = 0 ; k < Nb_turn_pt ; k++ )
       { for( i=0 ;  i< (turn_index[k+1] - turn_index[k]) ; i++ )
           { 
             if( turn_level[k+1] < turn_level[k] ) { sig[k][i] = 1 ;}
             if( turn_level[k+1] > turn_level[k] ) { sig[k][i] = -1 ; }
            
             
            }
       }  
  /*
        for(k = 0 ; k < Nb_turn_pt ; k++ )
          { for( i= turn_index[k] ; i < turn_index[k+1] ; i++)
             {
             if( turn_level[k+1] < turn_level[k] ) { sig[i] = 1 ;}
             if( turn_level[k+1] > turn_level[k] ) { sig[i] = -1 ; }
             }
          }  
        
         
        
        k=0 ;
        for(i = 0 ;  i < turn_index[Nb_turn_pt] ; i++ )
           { if( i < turn_index[k] && level_turn[k] < level[k+1]) sig[i]= 1 ;
             if( i < turn_index[k] && level_turn[k] > level[k+1]) sig[i]= -1 ;
             if(i == turn_index[k]) sig[i] = -sig[i-1] ;
             
             }
  */
         
   
//----
   return(0);
  }