tpot_digits_pipeline_mdr.py

import numpy as np
import pandas as pd
from sklearn.linear_model import LogisticRegression
from sklearn.model_selection import train_test_split
from sklearn.pipeline import make_pipeline, make_union
from tpot.builtins import StackingEstimator
from sklearn.preprocessing import FunctionTransformer
from copy import copy

# NOTE: Make sure that the outcome column is labeled 'target' in the data file
tpot_data = pd.read_csv('PATH/TO/DATA/FILE', sep='COLUMN_SEPARATOR', dtype=np.float64)
features = tpot_data.drop('target', axis=1)
training_features, testing_features, training_target, testing_target = \
            train_test_split(features, tpot_data['target'], random_state=None)

# Average CV score on the training set was: 0.9643563265868098
exported_pipeline = make_pipeline(
    make_union(
        FunctionTransformer(copy),
        FunctionTransformer(copy)
    ),
    LogisticRegression(C=0.001, dual=False, penalty="l2")
)

exported_pipeline.fit(training_features, training_target)
results = exported_pipeline.predict(testing_features)