Indicador RVI

//https://www.youtube.com/watch?v=kIw2bgAvSH4

int RVI=0;

int OnInit()
   {
   RVI=iRVI(_Symbol,PERIOD_CURRENT,10);
   return(0);
   }

void OnTick()
  {
   Comment( "L.RVI= ",IndicadorRVI(0),
            "\nSeñal= ",IndicadorRVI(1)
          );
  }

double IndicadorRVI(int Buffer)
  {
   double RVIArray[];
   ArraySetAsSeries(RVIArray,true);
   CopyBuffer(RVI,Buffer,0,2,RVIArray);

   return(NormalizeDouble(RVIArray[1],_Digits));
  }