Files
drift/training/train_model.py
T
Mark Aron Szulyovszky b5ddee8dce feat(HPO): added run_hpo script (#237)
* feat(HPO): added `run_hpo` script

* fix(Linter): ran

* feat(HPO): removed any reference to sweep (superseeded by optuna)

* fix(HPO): optimize for sharpe

* fix(Config): removed glassnode data, save trials from hpo

* feat(Labelling): added three-balanced method works again

* fix(BetSizing): set the correct class labels

* fix(HPO): powerset should return what's expected, added two new normalization methods

* fix(Linter): ran

* fix(DataLoader): sort the dataframe when fetching data

* fix(Config): only take z-score of other assets
2022-03-15 14:43:16 +01:00

72 lines
2.0 KiB
Python

import pandas as pd
from typing import Literal, Optional
from training.walk_forward import (
walk_forward_train,
walk_forward_inference,
walk_forward_inference_batched,
)
from models.base import Model
from .types import (
ModelOverTime,
TransformationsOverTime,
BaseTrainingOutcome,
)
def train_model(
ticker_to_predict: str,
X: pd.DataFrame,
y: pd.Series,
forward_returns: pd.Series,
model: Model,
initial_window_size: int,
retrain_every: int,
from_index: Optional[pd.Timestamp],
level: str,
class_labels: list[int],
transformations_over_time: TransformationsOverTime,
model_over_time: Optional[ModelOverTime],
) -> BaseTrainingOutcome:
levelname = ("_" + level) if level == "meta" else ""
model_id = (
"model_" + model.name + "_" + ticker_to_predict + levelname
if model_over_time is None
else model_over_time.name
)
if model_over_time is None:
print("Train model")
model_over_time = walk_forward_train(
model=model,
X=X,
y=y,
forward_returns=forward_returns,
expanding_window=True,
window_size=initial_window_size,
retrain_every=retrain_every,
from_index=from_index,
transformations_over_time=transformations_over_time,
)
inference_function = (
walk_forward_inference
if from_index is not None
else walk_forward_inference_batched
)
predictions, probabilities = inference_function(
model_name=model_id,
model_over_time=model_over_time,
transformations_over_time=transformations_over_time,
X=X,
expanding_window=True,
window_size=initial_window_size,
retrain_every=retrain_every,
class_labels=class_labels,
from_index=from_index,
)
assert len(predictions) == len(y)
return BaseTrainingOutcome(model_id, predictions, probabilities, model_over_time)