How To Calculate Moving Average Convergence Divergence (MACD) in Go?

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package main

import (
	"fmt"
)

func main() {
	// Closing prices data
	closingPrices := []float64{100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150, 155}

	// Calculate 12-period EMA
	ema12 := calculateEMA(closingPrices, 12)

	// Calculate 26-period EMA
	ema26 := calculateEMA(closingPrices, 26)

	// Calculate MACD line
	macdLine := make([]float64, 0)
	for i := range ema12 {
		macdLine = append(macdLine, ema12[i]-ema26[i])
	}

	// Calculate Signal line (9-period EMA)
	signalLine := calculateEMA(macdLine, 9)

	// Calculate MACD Histogram
	macdHistogram := make([]float64, 0)
	for i := range macdLine {
		macdHistogram = append(macdHistogram, macdLine[i]-signalLine[i])
	}

	// Print MACD Histogram
	fmt.Println("MACD Histogram:", macdHistogram)
}

func calculateEMA(data []float64, period int) []float64 {
	ema := make([]float64, len(data))
	alpha := 2.0 / float64(period+1)

	// Initial EMA value
	ema[0] = data[0]

	// Calculate EMA
	for i := 1; i < len(data); i++ {
		ema[i] = (data[i]-ema[i-1])*alpha + ema[i-1]
	}

	return ema
}