Commodity Channel Index PLTPLT

12 hours ago

//version=5
indicator(title="Commodity Channel Index", shorttitle="CCI", format=format.price, precision=2, timeframe="", timeframe_gaps=true)
length = input.int(25, minval=1)
src = input(hlc3, title="Source")
ma = ta.sma(src, length)
cci = (src - ma) / (0.015 * ta.dev(src, length))
plot(cci, "CCI", color=#2962FF)
band1 = hline(90, "Upper Band", color=#787B86, linestyle=hline.style_dashed)
hline(0, "Middle Band", color=color.new(#787B86, 50))
band0 = hline(-90, "Lower Band", color=#787B86, linestyle=hline.style_dashed)
fill(band1, band0, color=color.rgb(33, 150, 243, 90), title="Background")

// Smoothing MA inputs
GRP = "Moving Average"
TT_BB = "Only applies when 'SMA + Bollinger Bands' is selected. Determines the distance between the SMA and the bands."
maTypeInput = input.string("SMA", "Type", options = ["None", "SMA", "SMA + Bollinger Bands", "EMA", "SMMA (RMA)", "WMA", "VWMA"], group = GRP, display = display.data_window)
maLengthInput = input.int(14, "Length", group = GRP, display = display.data_window)
bbMultInput = input.float(2.0, "BB StdDev", minval = 0.001, maxval = 50, step = 0.5, tooltip = TT_BB, group = GRP, display = display.data_window)
var enableMA = maTypeInput != "None"
var isBB = maTypeInput == "SMA + Bollinger Bands"

// Smoothing MA Calculation
ma(source, length, MAtype) =>
switch MAtype
"SMA" => ta.sma(source, length)
"SMA + Bollinger Bands" => ta.sma(source, length)
"EMA" => ta.ema(source, length)
"SMMA (RMA)" => ta.rma(source, length)
"WMA" => ta.wma(source, length)
"VWMA" => ta.vwma(source, length)

// Smoothing MA plots
smoothingMA = enableMA ? ma(cci, maLengthInput, maTypeInput) : na
smoothingStDev = isBB ? ta.stdev(cci, maLengthInput) * bbMultInput : na
plot(smoothingMA, "CCI-based MA", color=color.yellow, display = enableMA ? display.all : display.none)
bbUpperBand = plot(smoothingMA + smoothingStDev, title = "Upper Bollinger Band", color=color.green, display = isBB ? display.all : display.none)
bbLowerBand = plot(smoothingMA - smoothingStDev, title = "Lower Bollinger Band", color=color.green, display = isBB ? display.all : display.none)
fill(bbUpperBand, bbLowerBand, color= isBB ? color.new(color.green, 90) : na, title="Bollinger Bands Background Fill", display = isBB ? display.all : display.none)