Write to file signal 1 or 0

When I get a signal,  write the result to a csv file, for a Sell if the candle closes Red I will have a result 1 else 0, for a buy signal if the candle closes Green will have a result 1 else 0.

//--- indicator settings
#property indicator_chart_window
#property indicator_buffers 2

#property indicator_type1 DRAW_ARROW
#property indicator_width1 1
#property indicator_color1 Red
#property indicator_label1 "Sell"

#property indicator_type2 DRAW_ARROW
#property indicator_width2 1
#property indicator_color2 Lime
#property indicator_label2 "Buy"

//--- indicator buffers
double Buffer1[];
double Buffer2[];




extern string RSI             ="Setting RSI";
extern int Periodo            = 2;
extern double RSI_Max         = 70;
extern double RSI_Min         = 30;
datetime time_alert; //used when sending alert
extern bool Audible_Alerts = true;
double myPoint; //initialized in OnInit

void myAlert(string type, string message)
  {
   if(type == "print")
      Print(message);
   else if(type == "error")
     {
      Print(type+" | RSIalert @ "+Symbol()+","+Period()+" | "+message);
     }
   else if(type == "order")
     {
     }
   else if(type == "modify")
     {
     }
   else if(type == "indicator")
     {
      if(Audible_Alerts) Alert(type+" | RSIalert @ "+Symbol()+","+Period()+" | "+message);
     }
  }

//+------------------------------------------------------------------+
//| Custom indicator initialization function                         |
//+------------------------------------------------------------------+
int OnInit()
  {   
   IndicatorBuffers(2);
   SetIndexBuffer(0, Buffer1);
   SetIndexEmptyValue(0, 0);
   SetIndexArrow(0, 159);
   SetIndexBuffer(1, Buffer2);
   SetIndexEmptyValue(1, 0);
   SetIndexArrow(1, 159);
   //initialize myPoint
   myPoint = Point();
   if(Digits() == 5 || Digits() == 3)
     {
      myPoint *= 10;
     }
   return(INIT_SUCCEEDED);
  }


//+------------------------------------------------------------------+
//| 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[])
  {
   int limit = rates_total - prev_calculated;
   //--- counting from 0 to rates_total
   ArraySetAsSeries(Buffer1, true);
   ArraySetAsSeries(Buffer2, true);
   //--- initial zero
   if(prev_calculated < 1)
     {
      ArrayInitialize(Buffer1, 0);
      ArrayInitialize(Buffer2, 0);
     }
   else
      limit++;
   
   //--- main loop
   for(int i = limit-1; i >= 0; i--)
     {
      if (i >= MathMin(5000-1, rates_total-1-50)) continue; //omit some old rates to prevent "Array out of range" or slow calculation  
      
      

      // Indicator Buffer 1 Sell
      if(iRSI(NULL, PERIOD_CURRENT, Periodo, PRICE_CLOSE, 1+i) > RSI_Max 
         )

        {
         Buffer1[i] = High[i] + 1 * myPoint; // if close Red write to file 1 else 0
        }
      
        
      //Indicator Buffer 2 Buy
      if(iRSI(NULL, PERIOD_CURRENT, Periodo, PRICE_CLOSE, 1+i) < RSI_Min   
         )

        {
         Buffer2[i] = Low[i] - 1 * myPoint; // if close Lime write to file 1 else 0  
        }  
      }
      
  return(0);
  } 
   
  
   
//+------------------------------------------------------------------+