This script is written in Pine Script version 5 for TradingView and is designed to display multiple Exponential Moving Averages (EMAs) on a price chart. Here's a breakdown of its components:
1. Indicator Declaration indicator(title="Moving Averages", shorttitle="BFX BTMM EMA", overlay=true): Declares an indicator named "Moving Averages" with a short title "BFX BTMM EMA". overlay=true means the indicator will be plotted directly on the price chart, not in a separate window. 2. EMA Calculation The script calculates EMAs for the lengths of 5, 13, 50, 200, and 800 using the ta.ema() function, which applies the exponential moving average to the closing price (close). pinescript Copy code ema5 = ta.ema(close, 5) ema13 = ta.ema(close, 13) ema50 = ta.ema(close, 50) ema200 = ta.ema(close, 200) ema800 = ta.ema(close, 800) 3. Plotting EMAs Each EMA is plotted on the chart using the plot() function with specific colors for visual distinction: EMA5: Yellow (color.rgb(255, 213, 0)) EMA13: Red (color.rgb(255, 0, 0)) EMA50: Light Blue (color.rgb(111, 183, 242)) EMA200: White (color.rgb(255, 255, 255)) EMA800: Purple (color.rgb(60, 0, 255)) 4. Custom Smoothing Function ma(source, length, type) is a custom function that allows users to select different types of moving averages, such as SMA, EMA, SMMA (RMA), WMA, and VWMA. pinescript Copy code ma(source, length, type) => switch type "SMA" => 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) 5. User Inputs typeMA and smoothingLength are user inputs for selecting the smoothing method and the length of the moving average. These inputs allow customization of the indicator: typeMA provides options for the smoothing method. smoothingLength sets the length of the smoothing. pinescript Copy code typeMA = input.string(title = "Method", defval = "SMA", options=["SMA", "EMA", "SMMA (RMA)", "WMA", "VWMA"], group="Smoothing") smoothingLength = input.int(title = "Length", defval = 5, minval = 1, maxval = 100, group="Smoothing") Summary: This script calculates and plots five EMAs on the price chart, providing a visual representation of different time-frame trends. Additionally, it includes a custom function to allow the user to apply other smoothing techniques to the data, offering flexibility in analysis.