stable/docs/freqai-developers.md

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2022-09-11 15:50:50 +00:00
# Development
The class structure and details algorithmic overview is depicted in the following diagram:
![image](assets/freqai_algorithm-diagram.jpg)
As shown, there are three distinct objects comprising `FreqAI`:
* IFreqaiModel
* Singular persistent object containing all the necessary logic to collect data, store data, process data, engineer features, run training, and inference models.
* FreqaiDataKitchen
* A non-persistent object which is created uniquely for each unique asset/model. Beyond metadata, it also contains a variety of data processing tools.
* FreqaiDataDrawer
* Singular persistent object containing all the historical predictions, models, and save/load methods.
There are a variety of built-in prediction models which inherit directly from `IFreqaiModel` including:
* CatboostRegressor
* CatboostRegressorMultiTarget
* CatboostClassifier
* LightGBMRegressor
* LightGBMRegressorMultiTarget
* LightGBMClassifier
* XGBoostRegressor
* XGBoostRegressorMultiTarget
* XGBoostClassifier
Each of these have full access to all methods in `IFreqaiModel`. And can therefore, override any of those functions at will. However, advanced users will likely stick to overriding `fit()`, `train()`, `predict()`, and `data_cleaning_train/predict()`.