MFI Candle Trend

🎯 Purpose:
The MFI Candle Trend is a custom TradingView indicator that transforms the Money Flow Index (MFI) into candle-style visuals using various smoothing and transformation techniques. Rather than displaying MFI as a line, this script generates synthetic candles from MFI values, helping traders visualize money flow trends, strength, and potential reversals with more clarity.

📌 Trend strength can be analyzed based on buying and selling pressures in the trend direction.

🧩 How It Works:
Calculates MFI values for open, high, low, and close prices.

Applies optional smoothing using the user-selected moving average (EMA, SMA, WMA, etc.).

Transforms the smoothed MFI data into synthetic candles using a selected method:
Normal: Uses raw MFI data
Heikin-Ashi: Applies HA transformation to MFI
Linear: Uses linear regression on MFI values
Rational Quadratic: Applies advanced rational quadratic filtering via an external kernel library

Colors candles based on MFI momentum:
Cyan: Strong positive MFI movement
Red: Strong negative MFI movement

⚙️ Key Inputs:
Method:
The type of smoothing method to apply to MFI
Options: None, EMA, SMA, SMMA (RMA), WMA, VWMA, HMA, Mode

Length:
Period for both the MFI and smoothing calculation

Candle:
Selects the transformation mode for generating synthetic candles
Options: Normal, Heikin-Ashi, Linear, Rational Quadratic

Rational Quadratic:
Adjusts the depth of smoothing for the Rational Quadratic filter (applies only if selected)

📊 Outputs:
Synthetic MFI Candlesticks:
Plotted using the smoothed and transformed MFI values.

Dynamic Coloring:
Cyan when MFI momentum is increasing
Red when MFI momentum is decreasing

Horizontal Lines:
80: Overbought zone
20: Oversold zone

🧠 Why Use This Indicator?
Unlike traditional MFI indicators that use a line plot, this tool gives traders:
A candle-based visualization of money flow momentum
Enhanced trend and reversal detection using color-coded MFI candles
A choice of smoothing filters and transformations for noise reduction
A powerful combination of momentum and structure-based analysis
To combine volume and price strength into a single chart element

❗Important Note:
This indicator is for educational and analytical purposes only. It does not constitute financial advice. Always use proper risk management and validate with additional tools or analysis.