Files
drift/training/ensemble.py
T
Mark Aron Szulyovszky 3eb3ea94e3 Refactor(Training): new outcome types, representative pipeline steps, bet-sizing (#187)
* refactor(Training): added InferenceResult & TrainedModel types

* refactor(Pipeline): introduced TrainingOutcome, BetSizingWithMetaOutcome, etc.

* fix(Pipeline): getting it to compile

* refactor(WalkForward): separate preprocessing step

* feat(Pipeline): separate out transformations processing step

* refactor(Pipeline): use the Directional model terminology, put bet_sizing into pipeline instead of hiding it in a step

* refactor(WalkForward): moved functions to separate folder

* fix(WalkForward): use sparse array to store models, process transformations in parallel (lot faster)

* fix(Tests): and evaluation

* fix(Tests): for realz

* fix(Inference): preloading everything now, renamed primary models to directional models

* fix(BetSizing): was running transformations on the wrong data, oops

* fix(BetSizing): concatenated on the wrong axis accidentally

* fix(Reporting): able to use the new Stats type

* fix(BetSizing): renamed int column names

* fix(Portfolio): name the column properly

* fix(Reporting): rename the correct Series, lol

* fix(Inference): walk_forwad_inference() can deal with models not being aligned with the starting index

* fix(WalkForward): accidentally using the wrong index

* fix(WalkForward): use the correct indicies to fetch last model/transformations

* fix(CI): changed the name of the results
2022-01-29 06:41:40 +01:00

23 lines
829 B
Python

from .types import WeightsSeries, EnsembleOutcome
import pandas as pd
from utils.evaluate import evaluate_predictions
from data_loader.types import ForwardReturnSeries, ySeries
from typing import Literal
def ensemble_weights(
input_weights: list[WeightsSeries],
forward_returns: ForwardReturnSeries,
y: ySeries,
no_of_classes: Literal['two', 'three-balanced', 'three-imbalanced'],
) -> EnsembleOutcome:
weights = pd.concat(input_weights, axis=1).mean(axis=1)
stats = evaluate_predictions(
forward_returns = forward_returns,
y_pred = weights,
y_true = y,
no_of_classes = no_of_classes,
print_results = False,
discretize = True,
)
return EnsembleOutcome(weights, stats)