Quantitative Qualitative Estimation (QQE) Revised @langshen

Purpose: The QQE indicator helps identify buy and sell signals on a price chart. It uses a combination of RSI (Relative Strength Index) and smoothing techniques to generate fast and slow lines, then plots signals based on their crossovers.

Setup:
Price Source: By default, it uses the closing price (close), but you can change it.

RSI Length: Set to 14 by default. This controls how many periods are used to calculate RSI.

Smoothing Factor: Set to 5. This smooths the RSI data.

Slow Calculation: Set to 4.236. This adjusts the slow line’s sensitivity.

How It Works:
The indicator calculates a "fast line" (based on smoothed RSI) and a "slow line" (adjusted by volatility).

When the fast line crosses above the slow line, it’s a buy signal.

When the fast line crosses below the slow line, it’s a sell signal.

Signals on Chart:
Buy Signal: A small green circle appears below the price bar when a buy signal occurs.

Sell Signal: A small red circle appears above the price bar when a sell signal occurs.

Usage:
Add this indicator to your chart in a platform like TradingView (it’s written in Pine Script v5).

Watch for the green and red circles to decide when to buy or sell.

Use it with other indicators or analysis for better decisions, as it’s not a standalone tool.