Converting Custom MACD Script To Use With MT4 API

[Deleted] 2013.02.18 20:17

Hi All,

I'm new to MT4 and have been really struggling to convert a short MACD scrip to use a custom indicator with the MT4 API. The script below if for a MACD crossover and histogram chart similar to MT4's default one, however the histogram is color coded to indicate if the %K line is positive or negative and also indicates if %K is trending higher or lower, any assistance would be very much appreciated as my frustration has reached boiling point.

Many thanks in advance.

Conor.

<-------------------------------------------------------------------------------------------------------->

declare lower;

input fastLength = 12;

input slowLength = 26;

input MACDLength = 9;

input AverageType = {SMA, default EMA};

plot Value;

plot Avg;

switch (AverageType) {

case SMA:

Value = Average(close, fastLength) - Average(close, slowLength);

Avg = Average(Value, MACDLength);

case EMA:

Value = ExpAverage(close, fastLength) - ExpAverage(close, slowLength);

Avg = ExpAverage(Value, MACDLength);

}

plot Diff = Value - Avg;

plot ZeroLine = 0;

Value.SetDefaultColor(GetColor(1));

Avg.SetDefaultColor(GetColor(8));

Diff.SetDefaultColor(GetColor(5));

Diff.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);

Diff.SetLineWeight(3);

Diff.DefineColor("Positive and Up", Color.GREEN);

Diff.DefineColor("Positive and Down", Color.DARK_GREEN);

Diff.DefineColor("Negative and Down", Color.RED);

Diff.DefineColor("Negative and Up", Color.DARK_RED);

Diff.AssignValueColor(if Diff >= 0 then if Diff > Diff[1] then Diff.color("Positive and Up") else Diff.color("Positive and Down") else if Diff < Diff[1] then Diff.color("Negative and Down") else Diff.color("Negative and Up"));

ZeroLine.SetDefaultColor(GetColor(0));