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

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,
         )