The DefaultStrategy class is a trading strategy implementation that uses various technical analysis (TA) indicators to make buy and sell decisions. In the populate_indicators method, the strategy calculates and adds several TA indicators to the given DataFrame. These indicators include ADX (Average Directional Index), AO (Awesome Oscillator), MACD (Moving Average Convergence Divergence), MFI (Money Flow Index), RSI (Relative Strength Index), stochastic indicators (slowd and slowk), Bollinger Bands, Exponential Moving Averages (ema3, ema5, ema10, ema50, ema100), SAR (Stop and Reverse), SMA (Simple Moving Average), TEMA (Triple Exponential Moving Average), and HT_SINE (Hilbert Transform - SineWave).
The populate_buy_trend method populates the buy signal for the given DataFrame based on the calculated TA indicators.
The buy conditions include RSI below 35, fastd (stochastic indicator) below 35, ADX above 30, and plus_di (Directional Indicator) above 0.5.
Additionally, if ADX is above 65 and plus_di is above 0.5, a buy signal is generated. The populate_sell_trend method populates the sell signal for the given DataFrame based on the TA indicators. The sell conditions include RSI or fastd crossing above 70, ADX above 10, and minus_di (Directional Indicator) above 0. If ADX is above 70 and minus_di is above 0.5, a sell signal is generated. Overall, the strategy aims to identify potential buying opportunities when certain indicators suggest oversold conditions and selling opportunities when indicators indicate overbought conditions.