Advanced Sessions Pro

### Advanced Sessions Pro Indicator Description

#### Overview and Purpose
The **Advanced Sessions Pro** indicator is a comprehensive tool designed for traders who operate in global markets, particularly forex, indices, and cryptocurrencies, where multiple trading sessions overlap and influence price action. This indicator visualizes up to four major trading sessions (New York, London, Tokyo, and Sydney) on your chart, providing not just basic session highlighting but a suite of advanced analytical features to help identify intra-session trends, key levels, volume-weighted metrics, and statistical insights.

Unlike standard session indicators that merely shade time periods or plot highs/lows, **Advanced Sessions Pro** integrates original calculations to offer actionable intelligence. It combines session-specific range visualization with linear regression-based trendlines for intra-session momentum detection, Volume Weighted Average Price (VWAP) for fair value assessment, Point of Control (POC) from a simplified volume profile, and optional Value Area (VA) boundaries to highlight where the majority of trading volume occurred. Additionally, it includes a customizable statistics panel displaying real-time session metrics like range size, volume, and volatility (via ATR percentage), enabling traders to compare session performance at a glance.

This mashup of features is purposeful: it addresses the need for traders to quickly assess session strength, potential breakouts, or reversals without switching between multiple indicators. By merging time-based session delineation with statistical and volume-based analysis, it provides a holistic view of market behavior during high-liquidity periods, helping users make informed decisions on entries, exits, and risk management. For example, a trader might use the session trendline to gauge bullish/bearish bias within London hours, cross-referenced with VWAP for mean reversion plays, while the POC and VA identify support/resistance zones derived from actual volume distribution.

#### Originality and Uniqueness
While there are existing open-source session indicators on TradingView (e.g., basic session highlighters or time zone shaders), **Advanced Sessions Pro** stands out through its innovative integration of components that work synergistically to enhance session analysis:

- **Linear Regression Trendlines**: Unlike simple moving averages or static lines, this uses a least-squares linear regression calculation over the session's bars to plot a dynamic trendline, revealing the session's directional bias quantitatively. This is original in the context of sessions, as it treats each session as a mini-trend cycle, allowing traders to quantify momentum (e.g., slope direction) rather than relying on visual candlestick patterns alone.

- **Simplified Volume Profile Elements (POC and VA)**: The indicator builds a basic volume-at-price map during the session, identifying the POC (price with highest volume) and optionally the Value Area (covering ~70% of volume by default, user-adjustable). This isn't a full TPO profile but a lightweight, real-time approximation optimized for performance, making it unique for session-focused trading where full profiles might be overkill or resource-intensive.

- **Session-Specific Customization and Statistics Panel**: Each session can be independently configured for features like trendlines, VWAP, or VA, avoiding clutter. The stats panel is a novel addition, aggregating metrics like session volume and ATR% volatility, which helps compare sessions (e.g., spotting if Tokyo is more volatile than usual). This combination isn't replicated in standard session scripts, providing a "pro" level of utility for institutional-style analysis.

The script's originality lies in how these elements interact: the trendline might signal a breakout from the VA, while VWAP acts as a dynamic mean anchored to the session start. This creates a cohesive system for session-based strategies, such as ICT (Inner Circle Trader) concepts or smart money analysis, without redundant overlays. It's not a mere merger of existing indicators but a purpose-built tool to bridge time, price, and volume in a session context, justified by the need for efficient, multi-market session monitoring in 24/7 assets.

If published as closed-source, the uniqueness stems from the proprietary blending of linear regression with volume profile metrics per session, protected to preserve the optimized calculations that ensure low latency on high-timeframe charts.

#### How It Works
The indicator operates in real-time, resetting calculations at the start of each configured session based on the user-defined time specifications and timezone offset.

- **Session Detection**: Using TradingView's `time()` function with timezone adjustments (UTC offset or exchange TZ), it checks if the current bar falls within the session window (e.g., New York: 0700-1600). Sessions are processed independently to handle overlaps (common in forex).

- **Range Visualization**: For each active session, it tracks highs/lows and draws a semi-transparent box (customizable transparency and outline) from session start to current bar, updating dynamically.

- **Trendline Calculation**: Employs linear regression via the least-squares method:
- Accumulates bar count (X), close prices (Y), XY products, and X² sums.
- Slope = (n * ΣXY - ΣX * ΣY) / (n * ΣX² - (ΣX)²)
- Intercept = (ΣY - slope * ΣX) / n
- Plots a line from session start (Y1 = intercept + slope) to current bar (Y2 = intercept + slope * n), with width and style customizable.

- **VWAP**: Cumulative (typical price * volume) / cumulative volume, reset per session, providing a volume-weighted mean for fair value gaps or deviations.

- **POC and Value Area**: Builds a map of volume at rounded price levels (to mintick). POC is the price with max volume. VA (if enabled) scans the map to find the range covering the specified percentage (default 70%) of total volume, starting from POC outward.

- **High/Low and Mean**: Optional stepped lines for session high/low, and simple arithmetic mean if selected.

- **Statistics Panel**: A table updates on the last bar with session status (active/inactive), range size, volume (if enabled), and volatility (ATR% = (ATR / close) * 100, if enabled).

- **Dividers**: Optional vertical lines and labels for new sessions or days to segment the chart.

All elements extend rightward until session end, with max limits (bars_back=500, lines/boxes/labels=500) for performance.

#### How to Use It
Add the indicator to your chart via TradingView's "Indicators" menu. Customize via the inputs tab:

- **Session Configurations**: Enable/disable each session (New York, London, etc.), set names, time ranges (e.g., "0700-1600"), colors, and toggle features like Range, Trendline, Mean, VWAP, High/Low, POC, Value Area.

- **Timezone**: Set UTC offset (e.g., -5 for EDT) or use exchange TZ for accuracy across symbols.

- **Visual Settings**: Adjust range transparency (0-100), show outlines/labels, line width (1-5), VA % (50-90).

- **Statistics**: Toggle panel, location (Top Right default), size (Small default), and metrics (Volume, Volatility).

- **Dividers**: Show session or daily separators for chart organization.

Best used on lower timeframes (1-15min) for intraday trading. For example:
- In forex (EURUSD), enable all sessions to spot London breakout from Asian range.
- Use trendline slope for bias: positive = bullish session.
- Trade bounces from POC/VA or deviations from VWAP.
- Monitor stats for anomalies, like high volume in Tokyo signaling news.

This indicator empowers traders with session-centric insights, reducing guesswork in multi-timezone markets. Feedback welcome for future enhancements!