MQ4 Error i need help

[chukwudi igbojionu]

i keep getting error what am i doing wrong

   

input int    ATR_Period    = 22;
input double ATR_Multiplier = 3.0;
input bool   ShowLabels    = true;
input bool   UseClose      = true;
input bool   Highlight     = true;

int direction;

double longStop, longStopPrev, shortStop, shortStopPrev, atr;

void OnInit()
{
  direction = 0;
}
void OnTick()
    {
    atr = ATR_Multiplier * iATR(NULL, 0, ATR_Period);
    if (UseClose)
  {
    longStop = iHighest(NULL, 0, MODE_CLOSE, ATR_Period) - atr;
    shortStop = iLowest(NULL, 0, MODE_CLOSE, ATR_Period) + atr;
  }
  else
  {
    longStop = iHighest(NULL, 0, MODE_HIGH, ATR_Period) - atr;
    shortStop = iLowest(NULL, 0, MODE_LOW, ATR_Period) + atr;
  }

  longStopPrev = longStop;
  shortStopPrev = shortStop;

  if (Close[0] > longStopPrev)
    longStop = MathMax(longStop, longStopPrev);

  if (Close[0] < shortStopPrev)
    shortStop = MathMin(shortStop, shortStopPrev);
    
    if (Close[0] > longStopPrev)
    longStop = MathMax(longStop, longStopPrev);
    
    if (Close[0] < shortStopPrev)
    shortStop = MathMin(shortStop, shortStopPrev);
    
     direction = (Close[0] > shortStopPrev ? 1 : (Close[0] < longStopPrev ? -1 : direction));
     
     if (Highlight)
  {
    if (direction == 1)
      ObjectCreate("LongStop", OBJ_TREND, 0, Time[0], longStop, Time[0] + Period() * 2, longStop);
    else if (direction == -1)
      ObjectCreate("ShortStop", OBJ_TREND, 0, Time[0], shortStop, Time[0] + Period() * 2, shortStop);
    else
    {
      ObjectDelete("LongStop");
      ObjectDelete("ShortStop");
    }
  }

  if (ShowLabels)
  {
    if (direction == 1)
      ObjectCreate("LongLabel", OBJ_LABEL, 0, Time[0], longStop, "Long");
    else if (direction == -1)
      ObjectCreate("ShortLabel", OBJ_LABEL, 0, Time[0], shortStop, "Short");
    else
    {
      ObjectDelete("LongLabel");
      ObjectDelete("ShortLabel");
    }
 
  if (direction != direction[1])
    Alert("Chandelier Exit direction has changed!");

  if (direction == 1 && direction[1] == -1)
    Alert("Chandelier Exit buy signal!");

  if (direction == -1 && direction[1] == 1)
    Alert("Chandelier Exit sell signal!");
    }
     
     
     
    }

[Paul Anscombe]

chukwudi igbojionu:
i keep getting error what am i doing wrong

do you expect people to just guess what your problem is?  how about you provide some details or do you expect everyone to download your code, compile and run it!

[William Roeder]

1.     longStop = iHighest(NULL, 0, MODE_CLOSE, ATR_Period) - atr;

   Incorrect number of parameters. Read the documentation.

2. iHighest does not return a price. Read the documentation.

3.   longStopPrev = longStop;
     shortStopPrev = shortStop;
   
     if (Close[0] > longStopPrev)
       longStop = MathMax(longStop, longStopPrev);

   What is the purpose of xPrev when they are always the same?