PINE教學3：常用技術指標MACD、RSI、CCI、BB、ATR食用方法

//@version=5
indicator("PINE教學4：常用技術指標MACD、RSI、CCI、BB、ATR食用方法", overlay=false)

// Plot MACD
// [macdLine, signalLine, histLine] = ta.macd(close, 12, 26, 9)
// plot(macdLine, color=color.blue)
// plot(signalLine, color=color.orange)
// plot(histLine, color=color.red, style=plot.style_histogram)

// Your MACD

macd(src, fastLen, slowLen, signalLen) =>
    fastMA = ta.ema(src, 12)
    slowMA = ta.ema(src, 26)
    macd = fastMA - slowMA
    signal = ta.ema(macd, 9)
    hist = macd - signal
    [macd, signal, hist]
    // plot(macd, color=color.blue)
    // plot(signal, color=color.orange)
    // plot(hist, color=color.red, style=plot.style_histogram)

[macdLine, signalLine, histLine] = ta.macd(close, 12, 26, 9)

alert("Pric222e (" + str.tostring(close) + ") crossed over MA (" + str.tostring(close) +  ").", alert.freq_once_per_bar)
alertcondition(ta.crossover(macdLine, signalLine), "CO", "CO")

plot(macdLine, color=color.blue)
plot(signalLine, color=color.orange)
plot(histLine, color=histLine>histLine[1]?color.green:color.red, style=plot.style_histogram)