stable/docs/freqai-parameter-table.md

Parameter table

The table below will list all configuration parameters available for FreqAI. Some of the parameters are exemplified in config_examples/config_freqai.example.json.

Mandatory parameters are marked as Required and have to be set in one of the suggested ways.

General configuration parameters

Parameter	Description
	General configuration parameters within the config.freqai tree
freqai	Required. The parent dictionary containing all the parameters for controlling FreqAI. Datatype: Dictionary.
train_period_days	Required. Number of days to use for the training data (width of the sliding window). Datatype: Positive integer.
backtest_period_days	Required. Number of days to inference from the trained model before sliding the train_period_days window defined above, and retraining the model during backtesting (more info here). This can be fractional days, but beware that the provided timerange will be divided by this number to yield the number of trainings necessary to complete the backtest. Datatype: Float.
identifier	Required. A unique ID for the current model. If models are saved to disk, the identifier allows for reloading specific pre-trained models/data. Datatype: String.
live_retrain_hours	Frequency of retraining during dry/live runs. Datatype: Float > 0. Default: 0 (models retrain as often as possible).
expiration_hours	Avoid making predictions if a model is more than expiration_hours old. Datatype: Positive integer. Default: 0 (models never expire).
purge_old_models	Number of models to keep on disk (not relevant to backtesting). Default is 2, which means that dry/live runs will keep the latest 2 models on disk. Setting to 0 keeps all models. This parameter also accepts a boolean to maintain backwards compatibility. Datatype: Integer. Default: 2.
save_backtest_models	Save models to disk when running backtesting. Backtesting operates most efficiently by saving the prediction data and reusing them directly for subsequent runs (when you wish to tune entry/exit parameters). Saving backtesting models to disk also allows to use the same model files for starting a dry/live instance with the same model identifier. Datatype: Boolean. Default: False (no models are saved).
fit_live_predictions_candles	Number of historical candles to use for computing target (label) statistics from prediction data, instead of from the training dataset (more information can be found here). Datatype: Positive integer.
continual_learning	Use the final state of the most recently trained model as starting point for the new model, allowing for incremental learning (more information can be found here). Datatype: Boolean. Default: False.
write_metrics_to_disk	Collect train timings, inference timings and cpu usage in json file. Datatype: Boolean. Default: False
data_kitchen_thread_count	Designate the number of threads you want to use for data processing (outlier methods, normalization, etc.). This has no impact on the number of threads used for training. If user does not set it (default), FreqAI will use max number of threads - 2 (leaving 1 physical core available for Freqtrade bot and FreqUI) Datatype: Positive integer.

Feature parameters

Parameter	Description
	Feature parameters within the freqai.feature_parameters sub dictionary
feature_parameters	A dictionary containing the parameters used to engineer the feature set. Details and examples are shown here. Datatype: Dictionary.
include_timeframes	A list of timeframes that all indicators in feature_engineering_expand_*() will be created for. The list is added as features to the base indicators dataset. Datatype: List of timeframes (strings).
include_corr_pairlist	A list of correlated coins that FreqAI will add as additional features to all pair_whitelist coins. All indicators set in feature_engineering_expand_*() during feature engineering (see details here) will be created for each correlated coin. The correlated coins features are added to the base indicators dataset. Datatype: List of assets (strings).
label_period_candles	Number of candles into the future that the labels are created for. This is used in feature_engineering_expand_all() (see templates/FreqaiExampleStrategy.py for detailed usage). You can create custom labels and choose whether to make use of this parameter or not. Datatype: Positive integer.
include_shifted_candles	Add features from previous candles to subsequent candles with the intent of adding historical information. If used, FreqAI will duplicate and shift all features from the include_shifted_candles previous candles so that the information is available for the subsequent candle. Datatype: Positive integer.
weight_factor	Weight training data points according to their recency (see details here). Datatype: Positive float (typically < 1).
indicator_max_period_candles	No longer used (#7325). Replaced by startup_candle_count which is set in the strategy. startup_candle_count is timeframe independent and defines the maximum period used in feature_engineering_*() for indicator creation. FreqAI uses this parameter together with the maximum timeframe in include_time_frames to calculate how many data points to download such that the first data point does not include a NaN. Datatype: Positive integer.
indicator_periods_candles	Time periods to calculate indicators for. The indicators are added to the base indicator dataset. Datatype: List of positive integers.
principal_component_analysis	Automatically reduce the dimensionality of the data set using Principal Component Analysis. See details about how it works here Datatype: Boolean. Default: False.
plot_feature_importances	Create a feature importance plot for each model for the top/bottom plot_feature_importances number of features. Plot is stored in user_data/models/<identifier>/sub-train-<COIN>_<timestamp>.html. Datatype: Integer. Default: 0.
DI_threshold	Activates the use of the Dissimilarity Index for outlier detection when set to > 0. See details about how it works here. Datatype: Positive float (typically < 1).
use_SVM_to_remove_outliers	Train a support vector machine to detect and remove outliers from the training dataset, as well as from incoming data points. See details about how it works here. Datatype: Boolean.
svm_params	All parameters available in Sklearn's SGDOneClassSVM(). See details about some select parameters here. Datatype: Dictionary.
use_DBSCAN_to_remove_outliers	Cluster data using the DBSCAN algorithm to identify and remove outliers from training and prediction data. See details about how it works here. Datatype: Boolean.
inlier_metric_window	If set, FreqAI adds an inlier_metric to the training feature set and set the lookback to be the inlier_metric_window, i.e., the number of previous time points to compare the current candle to. Details of how the inlier_metric is computed can be found here. Datatype: Integer. Default: 0.
noise_standard_deviation	If set, FreqAI adds noise to the training features with the aim of preventing overfitting. FreqAI generates random deviates from a gaussian distribution with a standard deviation of noise_standard_deviation and adds them to all data points. noise_standard_deviation should be kept relative to the normalized space, i.e., between -1 and 1. In other words, since data in FreqAI is always normalized to be between -1 and 1, noise_standard_deviation: 0.05 would result in 32% of the data being randomly increased/decreased by more than 2.5% (i.e., the percent of data falling within the first standard deviation). Datatype: Integer. Default: 0.
outlier_protection_percentage	Enable to prevent outlier detection methods from discarding too much data. If more than outlier_protection_percentage % of points are detected as outliers by the SVM or DBSCAN, FreqAI will log a warning message and ignore outlier detection, i.e., the original dataset will be kept intact. If the outlier protection is triggered, no predictions will be made based on the training dataset. Datatype: Float. Default: 30.
reverse_train_test_order	Split the feature dataset (see below) and use the latest data split for training and test on historical split of the data. This allows the model to be trained up to the most recent data point, while avoiding overfitting. However, you should be careful to understand the unorthodox nature of this parameter before employing it. Datatype: Boolean. Default: False (no reversal).
shuffle_after_split	Split the data into train and test sets, and then shuffle both sets individually. Datatype: Boolean. Default: False.
buffer_train_data_candles	Cut buffer_train_data_candles off the beginning and end of the training data after the indicators were populated. The main example use is when predicting maxima and minima, the argrelextrema function cannot know the maxima/minima at the edges of the timerange. To improve model accuracy, it is best to compute argrelextrema on the full timerange and then use this function to cut off the edges (buffer) by the kernel. In another case, if the targets are set to a shifted price movement, this buffer is unnecessary because the shifted candles at the end of the timerange will be NaN and FreqAI will automatically cut those off of the training dataset. Datatype: Boolean. Default: False.

Data split parameters

Parameter	Description
	Data split parameters within the freqai.data_split_parameters sub dictionary
data_split_parameters	Include any additional parameters available from scikit-learn test_train_split(), which are shown here (external website). Datatype: Dictionary.
test_size	The fraction of data that should be used for testing instead of training. Datatype: Positive float < 1.
shuffle	Shuffle the training data points during training. Typically, to not remove the chronological order of data in time-series forecasting, this is set to False. Datatype: Boolean. Defaut: False.

Model training parameters

Parameter	Description
	Model training parameters within the freqai.model_training_parameters sub dictionary
model_training_parameters	A flexible dictionary that includes all parameters available by the selected model library. For example, if you use LightGBMRegressor, this dictionary can contain any parameter available by the LightGBMRegressor here (external website). If you select a different model, this dictionary can contain any parameter from that model. A list of the currently available models can be found here. Datatype: Dictionary.
n_estimators	The number of boosted trees to fit in the training of the model. Datatype: Integer.
learning_rate	Boosting learning rate during training of the model. Datatype: Float.
n_jobs, thread_count, task_type	Set the number of threads for parallel processing and the task_type (gpu or cpu). Different model libraries use different parameter names. Datatype: Float.

Reinforcement Learning parameters

Parameter	Description
	Reinforcement Learning Parameters within the freqai.rl_config sub dictionary
rl_config	A dictionary containing the control parameters for a Reinforcement Learning model. Datatype: Dictionary.
train_cycles	Training time steps will be set based on the `train_cycles * number of training data points. Datatype: Integer.
cpu_count	Number of processors to dedicate to the Reinforcement Learning training process. Datatype: int.
max_trade_duration_candles	Guides the agent training to keep trades below desired length. Example usage shown in prediction_models/ReinforcementLearner.py within the customizable calculate_reward() function. Datatype: int.
model_type	Model string from stable_baselines3 or SBcontrib. Available strings include: 'TRPO', 'ARS', 'RecurrentPPO', 'MaskablePPO', 'PPO', 'A2C', 'DQN'. User should ensure that model_training_parameters match those available to the corresponding stable_baselines3 model by visiting their documentaiton. PPO doc (external website) Datatype: string.
policy_type	One of the available policy types from stable_baselines3 Datatype: string.
max_training_drawdown_pct	The maximum drawdown that the agent is allowed to experience during training. Datatype: float. Default: 0.8
cpu_count	Number of threads/cpus to dedicate to the Reinforcement Learning training process (depending on if ReinforcementLearning_multiproc is selected or not). Recommended to leave this untouched, by default, this value is set to the total number of physical cores minus 1. Datatype: int.
model_reward_parameters	Parameters used inside the customizable calculate_reward() function in ReinforcementLearner.py Datatype: int.
add_state_info	Tell FreqAI to include state information in the feature set for training and inferencing. The current state variables include trade duration, current profit, trade position. This is only available in dry/live runs, and is automatically switched to false for backtesting. Datatype: bool. Default: False.
net_arch	Network architecture which is well described in stable_baselines3 doc. In summary: [<shared layers>, dict(vf=[<non-shared value network layers>], pi=[<non-shared policy network layers>])]. By default this is set to [128, 128], which defines 2 shared hidden layers with 128 units each.
randomize_starting_position	Randomize the starting point of each episode to avoid overfitting. Datatype: bool. Default: False.
drop_ohlc_from_features	Do not include the normalized ohlc data in the feature set passed to the agent during training (ohlc will still be used for driving the environment in all cases) Datatype: Boolean. Default: False

Additional parameters

Parameter	Description
	Extraneous parameters
freqai.keras	If the selected model makes use of Keras (typical for TensorFlow-based prediction models), this flag needs to be activated so that the model save/loading follows Keras standards. Datatype: Boolean. Default: False.
freqai.conv_width	The width of a convolutional neural network input tensor. This replaces the need for shifting candles (include_shifted_candles) by feeding in historical data points as the second dimension of the tensor. Technically, this parameter can also be used for regressors, but it only adds computational overhead and does not change the model training/prediction. Datatype: Integer. Default: 2.
freqai.reduce_df_footprint	Recast all numeric columns to float32/int32, with the objective of reducing ram/disk usage and decreasing train/inference timing. This parameter is set in the main level of the Freqtrade configuration file (not inside FreqAI). Datatype: Boolean. Default: False.