MACDLine moving above/below SignalLine then Alert

[ponos1207]

Hello, I have a basic study that I would like to use as a baseline study and would like to add an alert to the study. What is that code to add into the script? Thanks!

 

[ponos1207]

I would like to have an alert when MACD crosses above or below the signal line. Here is the study that I am working with:

declare lower;

input fast_len = 12;
input slow_len = 26;
input signal_len = 9;
input atr_len = 26;
input overbought_bounds = 150;
input oversold_bounds = -150;
input price = close;

# Indicator calculation
def fast_ema = ExpAverage(price, fast_len);
def slow_ema = ExpAverage(price, slow_len);
def atr = ATR(atr_len);

def macd = ((fast_ema - slow_ema) / atr) * 100;
def signal = ExpAverage(macd, signal_len);
def hist = macd - signal;

# Plotting
plot MACDLine = macd;
plot SignalLine = signal;
plot Histogram = hist;
plot mylineup = 40;
plot mylinedown = -40;


MACDLine.SetDefaultColor(CreateColor(41, 98, 255)); # Blue
SignalLine.SetDefaultColor(CreateColor(255, 109, 0)); # Orange

Histogram.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);
Histogram.SetLineWeight(3);
Histogram.AssignValueColor(if hist >= 0 then
(if hist > hist[1] then CreateColor(38, 166, 154) else CreateColor(178, 223, 219))
else
(if hist > hist[1] then CreateColor(255, 205, 210) else CreateColor(255, 82, 82)));

# Overbought and Oversold bounds
plot UpperBand = overbought_bounds;
plot LowerBand = oversold_bounds;


UpperBand.SetDefaultColor(CreateColor(255, 255, 255)); # White
LowerBand.SetDefaultColor(CreateColor(255, 255, 255)); # White
mylineup.SetDefaultColor(CreateColor(255, 255, 255)); # White
mylinedown.SetDefaultColor(CreateColor(255, 255, 255)); # White
UpperBand.SetStyle(Curve.SHORT_DASH);
LowerBand.SetStyle(Curve.SHORT_DASH);

# Filling between the lines and the bounds if overbought or oversold
AddCloud(if macd > overbought_bounds then macd else Double.NaN, overbought_bounds, CreateColor(255, 200, 200), CreateColor(255, 200, 200));
AddCloud(if macd < oversold_bounds then macd else Double.NaN, oversold_bounds, CreateColor(200, 255, 200), CreateColor(200, 255, 200));

# Extending out the boundaries
plot ExtendedUpperBand = overbought_bounds;
plot ExtendedLowerBand = oversold_bounds;

ExtendedUpperBand.SetDefaultColor(CreateColor(200, 200, 200));
ExtendedLowerBand.SetDefaultColor(CreateColor(200, 200, 200));
ExtendedUpperBand.SetStyle(Curve.LONG_DASH);
ExtendedLowerBand.SetStyle(Curve.LONG_DASH);

 

[TRADERSAM]

I would like to have an alert when MACD crosses above or below the signal line. Here is the study that I am working with:

declare lower;

input fast_len = 12;
input slow_len = 26;
input signal_len = 9;
input atr_len = 26;
input overbought_bounds = 150;
input oversold_bounds = -150;
input price = close;

# Indicator calculation
def fast_ema = ExpAverage(price, fast_len);
def slow_ema = ExpAverage(price, slow_len);
def atr = ATR(atr_len);

def macd = ((fast_ema - slow_ema) / atr) * 100;
def signal = ExpAverage(macd, signal_len);
def hist = macd - signal;

# Plotting
plot MACDLine = macd;
plot SignalLine = signal;
plot Histogram = hist;
plot mylineup = 40;
plot mylinedown = -40;


MACDLine.SetDefaultColor(CreateColor(41, 98, 255)); # Blue
SignalLine.SetDefaultColor(CreateColor(255, 109, 0)); # Orange

Histogram.SetPaintingStrategy(PaintingStrategy.HISTOGRAM);
Histogram.SetLineWeight(3);
Histogram.AssignValueColor(if hist >= 0 then
(if hist > hist[1] then CreateColor(38, 166, 154) else CreateColor(178, 223, 219))
else
(if hist > hist[1] then CreateColor(255, 205, 210) else CreateColor(255, 82, 82)));

# Overbought and Oversold bounds
plot UpperBand = overbought_bounds;
plot LowerBand = oversold_bounds;


UpperBand.SetDefaultColor(CreateColor(255, 255, 255)); # White
LowerBand.SetDefaultColor(CreateColor(255, 255, 255)); # White
mylineup.SetDefaultColor(CreateColor(255, 255, 255)); # White
mylinedown.SetDefaultColor(CreateColor(255, 255, 255)); # White
UpperBand.SetStyle(Curve.SHORT_DASH);
LowerBand.SetStyle(Curve.SHORT_DASH);

# Filling between the lines and the bounds if overbought or oversold
AddCloud(if macd > overbought_bounds then macd else Double.NaN, overbought_bounds, CreateColor(255, 200, 200), CreateColor(255, 200, 200));
AddCloud(if macd < oversold_bounds then macd else Double.NaN, oversold_bounds, CreateColor(200, 255, 200), CreateColor(200, 255, 200));

# Extending out the boundaries
plot ExtendedUpperBand = overbought_bounds;
plot ExtendedLowerBand = oversold_bounds;

ExtendedUpperBand.SetDefaultColor(CreateColor(200, 200, 200));
ExtendedLowerBand.SetDefaultColor(CreateColor(200, 200, 200));
ExtendedUpperBand.SetStyle(Curve.LONG_DASH);
ExtendedLowerBand.SetStyle(Curve.LONG_DASH);

Add this to the bottom of your script

# === ALERT CONDITIONS ===
def bullishCross = macd crosses above signal;
def bearishCross = macd crosses below signal;

def macdOverbought = macd > overbought_bounds;
def macdOversold = macd < oversold_bounds;

# === ALERT TRIGGERS ===
Alert(bullishCross, "MACD Bullish Cross", Alert.BAR, Sound.Ring);
Alert(bearishCross, "MACD Bearish Cross", Alert.BAR, Sound.Bell);

Alert(macdOverbought, "MACD Overbought", Alert.BAR, Sound.Chimes);
Alert(macdOversold, "MACD Oversold", Alert.BAR, Sound.Ding);