import logging import time from datetime import timedelta import arrow import talib.abstract as ta from pandas import DataFrame, to_datetime from qtpylib.indicators import awesome_oscillator, crossed_above from freqtrade import exchange from freqtrade.exchange import Bittrex, get_ticker_history logging.basicConfig(level=logging.DEBUG, format='%(asctime)s - %(name)s - %(levelname)s - %(message)s') logger = logging.getLogger(__name__) def parse_ticker_dataframe(ticker: list) -> DataFrame: """ Analyses the trend for the given pair :param pair: pair as str in format BTC_ETH or BTC-ETH :return: DataFrame """ df = DataFrame(ticker) \ .drop('BV', 1) \ .rename(columns={'C':'close', 'V':'volume', 'O':'open', 'H':'high', 'L':'low', 'T':'date'}) df['date'] = to_datetime(df['date'], utc=True, infer_datetime_format=True) df.sort_values('date', inplace=True) return df def populate_indicators(dataframe: DataFrame) -> DataFrame: """ Adds several different TA indicators to the given DataFrame """ dataframe['sar'] = ta.SAR(dataframe) dataframe['adx'] = ta.ADX(dataframe) stoch = ta.STOCHF(dataframe) dataframe['fastd'] = stoch['fastd'] dataframe['fastk'] = stoch['fastk'] dataframe['blower'] = ta.BBANDS(dataframe, nbdevup=2, nbdevdn=2)['lowerband'] dataframe['sma'] = ta.SMA(dataframe, timeperiod=40) dataframe['tema'] = ta.TEMA(dataframe, timeperiod=9) dataframe['mfi'] = ta.MFI(dataframe) dataframe['cci'] = ta.CCI(dataframe) dataframe['ao'] = awesome_oscillator(dataframe) return dataframe def populate_buy_trend(dataframe: DataFrame) -> DataFrame: """ Based on TA indicators, populates the buy trend for the given dataframe :param dataframe: DataFrame :return: DataFrame with buy column """ dataframe.loc[ (dataframe['close'] < dataframe['sma']) & (dataframe['tema'] <= dataframe['blower']) & (dataframe['mfi'] < 25) & (dataframe['fastd'] < 25) & (dataframe['adx'] > 30), 'buy'] = 1 dataframe.loc[dataframe['buy'] == 1, 'buy_price'] = dataframe['close'] return dataframe def analyze_ticker(pair: str) -> DataFrame: """ Get ticker data for given currency pair, push it to a DataFrame and add several TA indicators and buy signal to it :return DataFrame with ticker data and indicator data """ minimum_date = arrow.utcnow().shift(hours=-24) data = get_ticker_history(pair, minimum_date) dataframe = parse_ticker_dataframe(data['result']) if dataframe.empty: logger.warning('Empty dataframe for pair %s', pair) return dataframe dataframe = populate_indicators(dataframe) dataframe = populate_buy_trend(dataframe) return dataframe def get_buy_signal(pair: str) -> bool: """ Calculates a buy signal based several technical analysis indicators :param pair: pair in format BTC_ANT or BTC-ANT :return: True if pair is good for buying, False otherwise """ dataframe = analyze_ticker(pair) if dataframe.empty: return False latest = dataframe.iloc[-1] # Check if dataframe is out of date signal_date = arrow.get(latest['date']) if signal_date < arrow.now() - timedelta(minutes=10): return False signal = latest['buy'] == 1 logger.debug('buy_trigger: %s (pair=%s, signal=%s)', latest['date'], pair, signal) return signal def plot_dataframe(dataframe: DataFrame, pair: str) -> None: """ Plots the given dataframe :param dataframe: DataFrame :param pair: pair as str :return: None """ import matplotlib matplotlib.use("Qt5Agg") import matplotlib.pyplot as plt # Two subplots sharing x axis fig, (ax1, ax2, ax3) = plt.subplots(3, sharex=True) fig.suptitle(pair, fontsize=14, fontweight='bold') ax1.plot(dataframe.index.values, dataframe['close'], label='close') # ax1.plot(dataframe.index.values, dataframe['sell'], 'ro', label='sell') ax1.plot(dataframe.index.values, dataframe['sma'], '--', label='SMA') ax1.plot(dataframe.index.values, dataframe['tema'], ':', label='TEMA') ax1.plot(dataframe.index.values, dataframe['blower'], '-.', label='BB low') ax1.plot(dataframe.index.values, dataframe['buy_price'], 'bo', label='buy') ax1.legend() ax2.plot(dataframe.index.values, dataframe['adx'], label='ADX') ax2.plot(dataframe.index.values, dataframe['mfi'], label='MFI') # ax2.plot(dataframe.index.values, [25] * len(dataframe.index.values)) ax2.legend() ax3.plot(dataframe.index.values, dataframe['fastk'], label='k') ax3.plot(dataframe.index.values, dataframe['fastd'], label='d') ax3.plot(dataframe.index.values, [20] * len(dataframe.index.values)) ax3.legend() # Fine-tune figure; make subplots close to each other and hide x ticks for # all but bottom plot. fig.subplots_adjust(hspace=0) plt.setp([a.get_xticklabels() for a in fig.axes[:-1]], visible=False) plt.show() if __name__ == '__main__': # Install PYQT5==5.9 manually if you want to test this helper function while True: exchange.EXCHANGE = Bittrex({'key': '', 'secret': ''}) test_pair = 'BTC_ETH' # for pair in ['BTC_ANT', 'BTC_ETH', 'BTC_GNT', 'BTC_ETC']: # get_buy_signal(pair) plot_dataframe(analyze_ticker(test_pair), test_pair) time.sleep(60)