isolate and standardize location of tensorboard files, add doc, ensure backtesting functionality

freqtrade/freqai/data_kitchen.py

@@ -120,6 +120,8 @@ class FreqaiDataKitchen:
             / f"sub-train-{pair.split('/')[0]}_{trained_timestamp}"
         )
 
+        Path(self.data_path / 'tensorboard').mkdir(parents=True, exist_ok=True)
+
         return
 
     def make_train_test_datasets(

freqtrade/freqai/freqai_interface.py

@@ -196,7 +196,6 @@ class IFreqaiModel(ABC):
             (_, trained_timestamp, _) = self.dd.get_pair_dict_info(pair)
 
             dk = FreqaiDataKitchen(self.config, self.live, pair)
-            dk.set_paths(pair, trained_timestamp)
             (
                 retrain,
                 new_trained_timerange,
@@ -267,9 +266,7 @@ class IFreqaiModel(ABC):
             )
 
             trained_timestamp_int = int(trained_timestamp.stopts)
-            dk.data_path = Path(
-                dk.full_path / f"sub-train-{pair.split('/')[0]}_{trained_timestamp_int}"
-                )
+            dk.set_paths(pair, trained_timestamp_int)
 
             dk.set_new_model_names(pair, trained_timestamp)
 

freqtrade/freqai/prediction_models/CatboostClassifier.py

@@ -1,4 +1,5 @@
 import logging
+from pathlib import Path
 from typing import Any, Dict
 
 from catboost import CatBoostClassifier, Pool
@@ -34,7 +35,7 @@ class CatboostClassifier(BaseClassifierModel):
         cbr = CatBoostClassifier(
             allow_writing_files=True,
             loss_function='MultiClass',
-            train_dir=dk.data_path,
+            train_dir=Path(dk.data_path / 'tensorboard'),
             **self.model_training_parameters,
         )
 

freqtrade/freqai/prediction_models/CatboostRegressor.py

@@ -1,4 +1,5 @@
 import logging
+from pathlib import Path
 from typing import Any, Dict
 
 from catboost import CatBoostRegressor, Pool
@@ -42,7 +43,7 @@ class CatboostRegressor(BaseRegressionModel):
 
         model = CatBoostRegressor(
             allow_writing_files=True,
-            train_dir=dk.data_path,
+            train_dir=Path(dk.data_path / 'tensorboard'),
             **self.model_training_parameters,
         )
 

freqtrade/freqai/prediction_models/CatboostRegressorMultiTarget.py

@@ -1,4 +1,5 @@
 import logging
+from pathlib import Path
 from typing import Any, Dict
 
 from catboost import CatBoostRegressor, Pool
@@ -27,7 +28,7 @@ class CatboostRegressorMultiTarget(BaseRegressionModel):
 
         cbr = CatBoostRegressor(
             allow_writing_files=True,
-            train_dir=dk.data_path,
+            train_dir=Path(dk.data_path / 'tensorboard'),
             **self.model_training_parameters,
         )