Merge pull request #7560 from smarmau/patch-2

Update freqai-spice-rack.md

docs/freqai-spice-rack.md

@@ -0,0 +1,71 @@
+# Using the `spice_rack`
+
+!!! Note:
+    `spice_rack` indicators should not be used exclusively for entries and exits, the following example is just a demonstration of syntax. `spice_rack` indicators should **always** be used to support existing strategies.
+
+The `spice_rack` is aimed at users who do not wish to deal with setting up `FreqAI` confgs, but instead prefer to interact with `FreqAI` similar to a `talib` indicator. In this case, the user can instead simply add two keys to their config:
+
+```json
+    "freqai_spice_rack": true, 
+    "freqai_identifier": "spicey-id",
+```
+
+Which tells `FreqAI` to set up a pre-set `FreqAI` instance automatically under the hood with preset parameters. Now the user can access a suite of custom `FreqAI` supercharged indicators inside their strategy by placing the following code into `populate_indicators`:
+
+```python
+        dataframe['dissimilarity_index'] = self.freqai.spice_rack(
+            'DI_values', dataframe, metadata, self)
+        dataframe['extrema'] = self.freqai.spice_rack(
+            '&s-extrema', dataframe, metadata, self)
+        self.freqai.close_spice_rack()  # user must close the spicerack
+```
+
+Users can then use these columns in concert with all their own additional indicators added to `populate_indicators` in their entry/exit criteria and strategy callback methods the same way as any typical indicator. For example:
+
+```python
+    def populate_entry_trend(self, df: DataFrame, metadata: dict) -> DataFrame:
+
+        df.loc[
+            (
+                (df['dissimilarity_index'] < 1) &
+                (df['extrema'] < -0.1)
+            ),
+            'enter_long'] = 1
+
+        df.loc[
+            (
+                (df['dissimilarity_index'] < 1) &
+                (df['extrema'] > 0.1)
+            ),
+            'enter_short'] = 1
+
+        return df
+
+    def populate_exit_trend(self, df: DataFrame, metadata: dict) -> DataFrame:
+
+        df.loc[
+            (
+                (df['dissimilarity_index'] < 1) &
+                (df['extrema'] > 0.1) 
+            ),
+
+            'exit_long'] = 1
+
+        df.loc[
+            (
+
+                (df['dissimilarity_index'] < 1) &
+                (df['extrema'] < -0.1)
+            ),
+            'exit_short'] = 1
+
+        return df
+```
+
+
+## Available indicators
+
+|  Parameter | Description |
+|------------|-------------|
+| `DI_values` | **Required.** <br> The dissimilarity index of the current candle to the recent candles. More information available [here](freqai-feature-engineering.md#identifying-outliers-with-the-dissimilarity-index-di) <br> **Datatype:** Floats.
+| `extrema` | **Required.** <br> A continuous prediction from FreqAI which aims to help predict if the current candle is a maxima or a minma. FreqAI aims for 1 to be a maxima and -1 to be a minima - but the values should typically hover between -0.2 and 0.2. <br> **Datatype:** Floats.

freqtrade/commands/data_commands.py

@@ -11,7 +11,8 @@ from freqtrade.data.history import (convert_trades_to_ohlcv, refresh_backtest_oh
                                     refresh_backtest_trades_data)
 from freqtrade.enums import CandleType, RunMode, TradingMode
 from freqtrade.exceptions import OperationalException
-from freqtrade.exchange import market_is_active, timeframe_to_minutes
+from freqtrade.exchange import Exchange, market_is_active, timeframe_to_minutes
+from freqtrade.freqai.utils import setup_freqai_spice_rack
 from freqtrade.plugins.pairlist.pairlist_helpers import dynamic_expand_pairlist, expand_pairlist
 from freqtrade.resolvers import ExchangeResolver
 
@@ -48,6 +49,10 @@ def start_download_data(args: Dict[str, Any]) -> None:
 
     # Init exchange
     exchange = ExchangeResolver.load_exchange(config['exchange']['name'], config, validate=False)
+
+    if config.get('freqai_spice_rack', False):
+        config = setup_freqai_spice_rack(config, exchange)
+
     markets = [p for p, m in exchange.markets.items() if market_is_active(m)
                or config.get('include_inactive')]
 
@@ -63,7 +68,19 @@ def start_download_data(args: Dict[str, Any]) -> None:
         exchange.validate_timeframes(timeframe)
 
     try:
+        pairs_not_available = download_trades(exchange, expanded_pairs, config, timerange)
 
+    except KeyboardInterrupt:
+        sys.exit("SIGINT received, aborting ...")
+
+    finally:
+        if pairs_not_available:
+            logger.info(f"Pairs [{','.join(pairs_not_available)}] not available "
+                        f"on exchange {exchange.name}.")
+
+
+def download_trades(exchange: Exchange, expanded_pairs: list,
+                    config: Dict[str, Any], timerange: TimeRange) -> list:
     if config.get('download_trades'):
         if config.get('trading_mode') == 'futures':
             raise OperationalException("Trade download not supported for futures.")
@@ -95,13 +112,7 @@ def start_download_data(args: Dict[str, Any]) -> None:
             prepend=config.get('prepend_data', False)
         )
 
-    except KeyboardInterrupt:
+    return pairs_not_available
-        sys.exit("SIGINT received, aborting ...")
-
-    finally:
-        if pairs_not_available:
-            logger.info(f"Pairs [{','.join(pairs_not_available)}] not available "
-                        f"on exchange {exchange.name}.")
 
 
 def start_convert_trades(args: Dict[str, Any]) -> None:

freqtrade/freqai/data_drawer.py

@@ -520,7 +520,7 @@ class FreqaiDataDrawer:
                 f"Unable to load model, ensure model exists at " f"{dk.data_path} "
             )
 
-        if self.config["freqai"]["feature_parameters"]["principal_component_analysis"]:
+        if self.config["freqai"]["feature_parameters"].get("principal_component_analysis", False):
             dk.pca = cloudpickle.load(
                 open(dk.data_path / f"{dk.model_filename}_pca_object.pkl", "rb")
             )
@@ -616,7 +616,6 @@ class FreqaiDataDrawer:
             pairs = self.freqai_info["feature_parameters"].get(
                 "include_corr_pairlist", []
             )
-
             for tf in self.freqai_info["feature_parameters"].get("include_timeframes"):
                 base_dataframes[tf] = dk.slice_dataframe(
                     timerange, historic_data[pair][tf]).reset_index(drop=True)

freqtrade/freqai/data_kitchen.py

@@ -99,6 +99,7 @@ class FreqaiDataKitchen:
         self.train_dates: DataFrame = pd.DataFrame()
         self.unique_classes: Dict[str, list] = {}
         self.unique_class_list: list = []
+        self.spice_dataframe: DataFrame = None
 
     def set_paths(
         self,
@@ -1259,3 +1260,11 @@ class FreqaiDataKitchen:
                 f"Could not find backtesting prediction file at {path_to_predictionfile}"
             )
         return file_exists
+
+    def spice_extractor(self, indicator: str, dataframe: DataFrame) -> npt.NDArray:
+        if indicator in dataframe.columns:
+            return np.array(dataframe[indicator])
+        else:
+            logger.warning(f'User asked spice_rack for {indicator}, '
+                           f'but it is not available. Returning 0s')
+            return np.zeros(len(dataframe.index))

freqtrade/freqai/freqai_interface.py

@@ -93,7 +93,7 @@ class IFreqaiModel(ABC):
         self.base_tf_seconds = timeframe_to_seconds(self.config['timeframe'])
         self.continual_learning = self.freqai_info.get('continual_learning', False)
         self.plot_features = self.ft_params.get("plot_feature_importances", 0)
-
+        self.spice_rack_open: bool = False
         self._threads: List[threading.Thread] = []
         self._stop_event = threading.Event()
 
@@ -142,7 +142,7 @@ class IFreqaiModel(ABC):
             dk = self.start_backtesting(dataframe, metadata, self.dk)
 
         dataframe = dk.remove_features_from_df(dk.return_dataframe)
-        self.clean_up()
+        # self.clean_up()
         if self.live:
             self.inference_timer('stop')
         return dataframe
@@ -732,6 +732,18 @@ class IFreqaiModel(ABC):
                     f'Best approximation queue: {best_queue}')
         return best_queue
 
+    def spice_rack(self, indicator: str, dataframe: DataFrame,
+                   metadata: dict, strategy: IStrategy) -> NDArray:
+        if not self.spice_rack_open:
+            dataframe = self.start(dataframe, metadata, strategy)
+            self.dk.spice_dataframe = dataframe
+            self.spice_rack_open = True
+            return self.dk.spice_extractor(indicator, dataframe)
+        else:
+            return self.dk.spice_extractor(indicator, self.dk.spice_dataframe)
+
+    def close_spice_rack(self):
+        self.spice_rack_open = False
     # Following methods which are overridden by user made prediction models.
     # See freqai/prediction_models/CatboostPredictionModel.py for an example.
 

freqtrade/freqai/spice_rack/lightgbm_config.json

@@ -0,0 +1,37 @@
+{
+
+    "freqai": {
+        "enabled": true,
+        "purge_old_models": true,
+        "train_period_days": 4,
+        "backtest_period_days": 1,
+        "identifier": "spicy-id",
+        "feature_parameters": {
+            "include_timeframes": [
+                "30m",
+                "1h",
+                "4h"
+            ],
+            "include_corr_pairlist": [
+                "BTC/USD",
+                "ETH/USD"
+            ],
+            "label_period_candles": 20,
+            "include_shifted_candles": 2,
+            "DI_threshold": 0.9,
+            "weight_factor": 0.9,
+            "principal_component_analysis": true,
+            "indicator_periods_candles": [
+                10,
+                20
+            ]
+        },
+        "data_split_parameters": {
+            "test_size": 0,
+            "random_state": 1
+        },
+        "model_training_parameters": {
+            "n_estimators": 800
+        }
+    }
+}

freqtrade/freqai/utils.py

@@ -1,19 +1,24 @@
 import logging
 from datetime import datetime, timezone
-from typing import Any
+from typing import Any, Dict, Optional
 
 import numpy as np
+# for spice rack
 import pandas as pd
+import talib.abstract as ta
+from scipy.signal import argrelextrema
+from technical import qtpylib
 
 from freqtrade.configuration import TimeRange
 from freqtrade.constants import Config
 from freqtrade.data.dataprovider import DataProvider
 from freqtrade.data.history.history_utils import refresh_backtest_ohlcv_data
 from freqtrade.exceptions import OperationalException
-from freqtrade.exchange import timeframe_to_seconds
+from freqtrade.exchange import Exchange, timeframe_to_seconds
 from freqtrade.exchange.exchange import market_is_active
 from freqtrade.freqai.data_kitchen import FreqaiDataKitchen
 from freqtrade.plugins.pairlist.pairlist_helpers import dynamic_expand_pairlist
+from freqtrade.strategy import merge_informative_pair
 
 
 logger = logging.getLogger(__name__)
@@ -89,6 +94,136 @@ def get_required_data_timerange(config: Config) -> TimeRange:
     return data_load_timerange
 
 
+def auto_populate_any_indicators(
+    self, pair, df, tf, informative=None, set_generalized_indicators=False
+):
+    """
+    This is a premade `populate_any_indicators()` function which is set in
+    the user strategy is they enable `freqai_spice_rack: true` in their
+    configuration file.
+    """
+
+    coin = pair.split('/')[0]
+
+    if informative is None:
+        informative = self.dp.get_pair_dataframe(pair, tf)
+
+    # first loop is automatically duplicating indicators for time periods
+    for t in self.freqai_info["feature_parameters"]["indicator_periods_candles"]:
+
+        t = int(t)
+        informative[f"%-{coin}rsi-period_{t}"] = ta.RSI(informative, timeperiod=t)
+        informative[f"%-{coin}mfi-period_{t}"] = ta.MFI(informative, timeperiod=t)
+        informative[f"%-{coin}adx-period_{t}"] = ta.ADX(informative, timeperiod=t)
+        informative[f"%-{coin}sma-period_{t}"] = ta.SMA(informative, timeperiod=t)
+        informative[f"%-{coin}ema-period_{t}"] = ta.EMA(informative, timeperiod=t)
+
+        bollinger = qtpylib.bollinger_bands(
+            qtpylib.typical_price(informative), window=t, stds=2.2
+        )
+        informative[f"{coin}bb_lowerband-period_{t}"] = bollinger["lower"]
+        informative[f"{coin}bb_middleband-period_{t}"] = bollinger["mid"]
+        informative[f"{coin}bb_upperband-period_{t}"] = bollinger["upper"]
+
+        informative[f"%-{coin}bb_width-period_{t}"] = (
+            informative[f"{coin}bb_upperband-period_{t}"]
+            - informative[f"{coin}bb_lowerband-period_{t}"]
+        ) / informative[f"{coin}bb_middleband-period_{t}"]
+        informative[f"%-{coin}close-bb_lower-period_{t}"] = (
+            informative["close"] / informative[f"{coin}bb_lowerband-period_{t}"]
+        )
+
+        informative[f"%-{coin}roc-period_{t}"] = ta.ROC(informative, timeperiod=t)
+
+        informative[f"%-{coin}relative_volume-period_{t}"] = (
+            informative["volume"] / informative["volume"].rolling(t).mean()
+        )
+
+    informative[f"%-{coin}pct-change"] = informative["close"].pct_change()
+    informative[f"%-{coin}raw_volume"] = informative["volume"]
+    informative[f"%-{coin}raw_price"] = informative["close"]
+
+    indicators = [col for col in informative if col.startswith("%")]
+    # This loop duplicates and shifts all indicators to add a sense of recency to data
+    for n in range(self.freqai_info["feature_parameters"]["include_shifted_candles"] + 1):
+        if n == 0:
+            continue
+        informative_shift = informative[indicators].shift(n)
+        informative_shift = informative_shift.add_suffix("_shift-" + str(n))
+        informative = pd.concat((informative, informative_shift), axis=1)
+
+    df = merge_informative_pair(df, informative, self.config["timeframe"], tf, ffill=True)
+    skip_columns = [
+        (s + "_" + tf) for s in ["date", "open", "high", "low", "close", "volume"]
+    ]
+    df = df.drop(columns=skip_columns)
+    if set_generalized_indicators:
+        df["%-day_of_week"] = (df["date"].dt.dayofweek + 1) / 7
+        df["%-hour_of_day"] = (df["date"].dt.hour + 1) / 25
+        df["&s-extrema"] = 0
+        min_peaks = argrelextrema(df["close"].values, np.less, order=80)
+        max_peaks = argrelextrema(df["close"].values, np.greater, order=80)
+        for mp in min_peaks[0]:
+            df.at[mp, "&s-extrema"] = -1
+        for mp in max_peaks[0]:
+            df.at[mp, "&s-extrema"] = 1
+
+    return df
+
+
+def setup_freqai_spice_rack(config: dict, exchange: Optional[Exchange]) -> Dict[str, Any]:
+    import difflib
+    import json
+    from pathlib import Path
+    auto_config = config.get('freqai_config', 'lightgbm_config.json')
+    with open(Path(__file__).parent / Path('spice_rack') / auto_config) as json_file:
+        freqai_config = json.load(json_file)
+        config['freqai'] = freqai_config['freqai']
+        config['freqai']['identifier'] = config['freqai_identifier']
+        corr_pairs = config['freqai']['feature_parameters']['include_corr_pairlist']
+        timeframes = config['freqai']['feature_parameters']['include_timeframes']
+        new_corr_pairs = []
+        new_tfs = []
+
+        if not exchange:
+            logger.warning('No dataprovider available.')
+            config['freqai']['enabled'] = False
+            return config
+        # find the closest pairs to what the default config wants
+        for pair in corr_pairs:
+            closest_pair = difflib.get_close_matches(
+                                        pair,
+                                        exchange.markets
+                                        )
+            if not closest_pair:
+                logger.warning(f'Could not find {pair} in markets, removing from '
+                               f'corr_pairlist.')
+            else:
+                closest_pair = closest_pair[0]
+
+            new_corr_pairs.append(closest_pair)
+            logger.info(f'Spice rack will use {closest_pair} as informative in FreqAI model.')
+
+        # find the closest matching timeframes to what the default config wants
+        if timeframe_to_seconds(config['timeframe']) > timeframe_to_seconds('15m'):
+            logger.warning('Default spice rack is designed for lower base timeframes (e.g. > '
+                           f'15m). But user passed {config["timeframe"]}.')
+        new_tfs.append(config['timeframe'])
+
+        list_tfs = [timeframe_to_seconds(tf) for tf
+                    in exchange.timeframes]
+        for tf in timeframes:
+            tf_secs = timeframe_to_seconds(tf)
+            closest_index = min(range(len(list_tfs)), key=lambda i: abs(list_tfs[i] - tf_secs))
+            closest_tf = exchange.timeframes[closest_index]
+            logger.info(f'Spice rack will use {closest_tf} as informative tf in FreqAI model.')
+            new_tfs.append(closest_tf)
+
+    config['freqai']['feature_parameters'].update({'include_timeframes': new_tfs})
+    config['freqai']['feature_parameters'].update({'include_corr_pairlist': new_corr_pairs})
+    config.update({"freqaimodel": 'LightGBMRegressor'})
+    return config
+
 # Keep below for when we wish to download heterogeneously lengthed data for FreqAI.
 # def download_all_data_for_training(dp: DataProvider, config: Config) -> None:
 #     """

freqtrade/optimize/backtesting.py

@@ -89,6 +89,10 @@ class Backtesting:
             self._exchange_name, self.config, load_leverage_tiers=True)
         self.dataprovider = DataProvider(self.config, self.exchange)
 
+        if config.get('freqai_spice_rack', False):
+            from freqtrade.freqai.utils import setup_freqai_spice_rack
+            self.config = setup_freqai_spice_rack(self.config, self.exchange)
+
         if self.config.get('strategy_list'):
             if self.config.get('freqai', {}).get('enabled', False):
                 logger.warning("Using --strategy-list with FreqAI REQUIRES all strategies "

freqtrade/strategy/interface.py

@@ -146,11 +146,27 @@ class IStrategy(ABC, HyperStrategyMixin):
                 self._ft_informative.append((informative_data, cls_method))
 
     def load_freqAI_model(self) -> None:
-        if self.config.get('freqai', {}).get('enabled', False):
+        spice_rack = self.config.get('freqai_spice_rack', False)
+        if self.config.get('freqai', {}).get('enabled', False) or spice_rack:
+            if spice_rack:
+                from freqtrade.freqai.utils import setup_freqai_spice_rack
+                self.config = setup_freqai_spice_rack(self.config, self.dp._exchange)
             # Import here to avoid importing this if freqAI is disabled
             from freqtrade.freqai.utils import download_all_data_for_training
             from freqtrade.resolvers.freqaimodel_resolver import FreqaiModelResolver
             self.freqai = FreqaiModelResolver.load_freqaimodel(self.config)
+            if not self.process_only_new_candles:
+                logger.warning('User set process_only_new_candles to false, '
+                               'FreqAI requires true. Changing to true.')
+                self.process_only_new_candles = True
+
+            if spice_rack:
+                import types
+
+                from freqtrade.freqai.utils import auto_populate_any_indicators
+                self.populate_any_indicators = types.MethodType(  # type: ignore
+                        auto_populate_any_indicators, self)
+
                 self.freqai_info = self.config["freqai"]
 
             # download the desired data in dry/live
@@ -161,6 +177,7 @@ class IStrategy(ABC, HyperStrategyMixin):
                     "already on disk."
                 )
                 download_all_data_for_training(self.dp, self.config)
+
         else:
             # Gracious failures if freqAI is disabled but "start" is called.
             class DummyClass():

mkdocs.yml

@@ -29,6 +29,7 @@ nav:
         - Parameter table: freqai-parameter-table.md
         - Feature engineering: freqai-feature-engineering.md
         - Running FreqAI: freqai-running.md
+        - Spice Rack: freqai-spice-rack.md
         - Developer guide: freqai-developers.md
     - Short / Leverage: leverage.md
     - Utility Sub-commands: utils.md

tests/freqai/test_freqai_datakitchen.py

@@ -158,3 +158,28 @@ def test_make_train_test_datasets(mocker, freqai_conf):
     assert data_dictionary
     assert len(data_dictionary) == 7
     assert len(data_dictionary['train_features'].index) == 1916
+
+
+@pytest.mark.parametrize('indicator', [
+    '%-ADArsi-period_10_5m',
+    'doesnt_exist',
+    ])
+def test_spice_extractor(mocker, freqai_conf, indicator, caplog):
+    freqai, unfiltered_dataframe = make_unfiltered_dataframe(mocker, freqai_conf)
+    freqai.dk.find_features(unfiltered_dataframe)
+
+    features_filtered, labels_filtered = freqai.dk.filter_features(
+            unfiltered_dataframe,
+            freqai.dk.training_features_list,
+            freqai.dk.label_list,
+            training_filter=True,
+        )
+
+    vec = freqai.dk.spice_extractor(indicator, features_filtered)
+    if 'doesnt_exist' in indicator:
+        assert log_has_re(
+            "User asked spice_rack for",
+            caplog,
+        )
+    else:
+        assert len(vec) == 2860

tests/freqai/test_freqai_interface.py

@@ -1,3 +1,4 @@
+import copy
 import platform
 import shutil
 from pathlib import Path
@@ -382,6 +383,31 @@ def test_plot_feature_importance(mocker, freqai_conf):
     shutil.rmtree(Path(freqai.dk.full_path))
 
 
+def test_spice_rack(mocker, default_conf, tmpdir, caplog):
+
+    strategy = get_patched_freqai_strategy(mocker, default_conf)
+    exchange = get_patched_exchange(mocker, default_conf)
+    strategy.dp = DataProvider(default_conf, exchange)
+
+    default_conf.update({"freqai_spice_rack": "true"})
+    default_conf.update({"freqai_identifier": "spicy-id"})
+    default_conf["config_files"] = [Path('config_examples', 'config_freqai.example.json')]
+    default_conf["timerange"] = "20180110-20180115"
+    default_conf["datadir"] = Path(default_conf["datadir"])
+    default_conf['exchange'].update({'pair_whitelist':
+                                    ['ADA/BTC', 'DASH/BTC', 'ETH/BTC', 'LTC/BTC']})
+    default_conf["user_data_dir"] = Path(tmpdir)
+    freqai_conf = copy.deepcopy(default_conf)
+
+    strategy.config = freqai_conf
+    strategy.load_freqAI_model()
+
+    assert log_has_re("Spice rack will use LTC/USD", caplog)
+    assert log_has_re("Spice rack will use 15m", caplog)
+    assert 'freqai' in freqai_conf
+    assert strategy.freqai
+
+
 @pytest.mark.parametrize('timeframes,corr_pairs', [
     (['5m'], ['ADA/BTC', 'DASH/BTC']),
     (['5m'], ['ADA/BTC', 'DASH/BTC', 'ETH/USDT']),