Trend Strength & Volatility v2

// This Pine Script™ code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © Zettt

//@version=5
indicator("Trend Strength & Volatility v2", overlay=true)

// EMA lengths
ema1Length = input.int(defval = 21, title = "EMA 1", tooltip = "EMA1/2 and EMA2/3 differences will be calculated and standarized, putting them in relation to price.") 
ema2Length = input.int(defval = 55, title = "EMA 2")
ema3Length = input.int(defval = 100, title = "EMA 3")
src = input.source(open, "Source")

// Standardized Trend Strength
// ###########################
// We use MACD as trend strength indicator because it calculates the difference of 2 EMAs
// The measurement is standardized to price
[macdShort, signalShort, histShort] = ta.macd(close[1], ema1Length, ema2Length, 9) // MACD for shorter EMAs
[macdLong, signalLong, histLong] = ta.macd(close[1], ema2Length, ema3Length, 9) // MACD for longer EMAs
differenceToPriceShort = macdShort / close
differenceToPriceLong = macdLong / close

// Historical Volatility
// #####################
lookbackLength = input.int(title='Lookback Length', defval=100, minval=1)

dailyReturns = close / close[1] - 1
historicalVolatility = ta.stdev(dailyReturns, lookbackLength) * math.sqrt(lookbackLength)

// Position Size
tradingCapital = input.int(defval = 1, title = "Trading Capital", minval = 1)
positionSizeShort = tradingCapital * (differenceToPriceShort / historicalVolatility)
positionSizeLong = tradingCapital * (differenceToPriceLong / historicalVolatility)

// Create a table with two columns and three rows
t = table.new(position.bottom_left, 6, 2, bgcolor=color.new(color.white, 10))

// Update table cells
// Table Header
table.cell(t, 0, 0, text="Short") // Trend strength short
table.cell(t, 1, 0, text="Long") // Trend strength short
table.cell(t, 2, 0, text="HV") // Trend strength short
table.cell(t, 3, 0, text="Size S") // ATR distance in percent
table.cell(t, 4, 0, text="Size L") // ATR distance in percent

// Column 0
table.cell(t, 0, 1, text=str.tostring(differenceToPriceShort, "#.##"))

// Column 1
table.cell(t, 1, 1, text=str.tostring(differenceToPriceLong, "#.##"))
// Column 2
table.cell(t, 2, 1, text=str.tostring(historicalVolatility, "#.##"))
// Column 3
// table.cell(t, 3, 1, text=str.tostring(risk, "#.##"))
// Column 4
table.cell(t, 3, 1, text=str.tostring(positionSizeShort, "#.##"))
// Column 5
table.cell(t, 4, 1, text=str.tostring(positionSizeLong, "#.##"))