[blackcat] L2 Guppy Swing Trader for Stocks 1D

9 dic

█ OVERVIEW
The script is an indicator designed for use on daily charts (1D) to identify swing trading opportunities in stocks. It calculates a series of exponential moving averages (EMAs) based on a custom "winner ratio" and plots these moving averages to help traders identify potential crossovers and swing points.

█ LOGICAL FRAMEWORK

The script is structured into several main sections:
1 — Custom Functions: Defines functions for calculating the exponential moving average (EMA) and the "winner ratio."
2 — Main Calculation Function: calculate_and_plot_guppy_trader which computes the EMA series based on the winner ratio.
3 — Input Parameters: Allows users to select the price type and period for the calculations.
4 — Data Mapping: Maps the selected price type to the corresponding price series.
5 — Execution and Plotting: Calls the main calculation function, plots the resulting EMAs, and adds labels for crossover signals.

The logical flow starts with the user-defined inputs, then the price type is mapped to the appropriate price series. The custom functions are used to compute the necessary intermediate values, and the main calculation function generates the EMA series. Finally, the EMA series are plotted, and crossover signals are labeled.

█ CUSTOM FUNCTIONS

1 — xda(src, coeff): Calculates an exponential moving average (EMA) for a given source (src) and smoothing coefficient (coeff). It uses a recursive formula to compute the EMA.
2 — winner(price, res): Computes a "winner ratio" based on the price and a specified resolution (res). It fetches historical price data, calculates a win ratio based on price comparisons, and applies an EMA to the win ratio using the historical share outstanding and volume data.

█ KEY POINTS AND TECHNIQUES

• Exponential Moving Averages (EMA): The script uses multiple EMAs to smooth the "winner ratio" and identify trends.
• Winner Ratio Calculation: The "winner ratio" is a custom metric that adjusts based on historical price data and trading volume, providing a unique insight into price momentum.
• Security Function: Utilizes the security function to fetch historical data at different resolutions, which is crucial for calculating the winner ratio.
• Labeling Crossovers: The script uses label.new to visually indicate when the moving averages cross each other, aiding in identifying potential trade signals.

█ EXTENDED KNOWLEDGE AND APPLICATIONS

• Modifications: The script could be modified to include additional EMAs or adjust the winner ratio calculation to incorporate more factors such as volatility or RSI.
• NOTE: Similar techniques could NOT be applied to other timeframes or asset classes, such as forex or cryptocurrencies because they lack of financial data required in this indicator, by adjusting the input parameters and possibly the resolution used in the security function.
• Related Concepts: Understanding the security function in Pine Script is crucial for fetching historical data at different resolutions. Additionally, knowledge of EMA calculations and custom function design in Pine Script would be beneficial for enhancing this script.