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Fixed missing feature names for XGBoost #93

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merged 5 commits into from
Jul 30, 2019
Merged

Fixed missing feature names for XGBoost #93

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3777533
Fixed missing feature names for XGBoost
akhvorov Jul 17, 2019
74f07d1
Fixed long line
akhvorov Jul 17, 2019
3497f8a
Simplify branching
akhvorov Jul 29, 2019
e6e8938
Add tests for a model without feature names
akhvorov Jul 29, 2019
1d1c824
Save model to temp directory
akhvorov Jul 30, 2019
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Save model to temp directory
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@akhvorov
akhvorov committed Jul 30, 2019
commit 1d1c824b8e65fce326faa9052b693ea45a88fdf1
16 changes: 6 additions & 10 deletions tests/assemblers/test_xgboost.py
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Original file line number Diff line number Diff line change
@@ -1,5 +1,6 @@
import xgboost
import numpy as np
import os
from tests import utils
from m2cgen import assemblers, ast

Expand Down Expand Up @@ -231,21 +232,16 @@ def test_multi_class_best_ntree_limit():


def test_regression_saved_without_feature_names():
import os

base_score = 0.6
estimator = xgboost.XGBRegressor(n_estimators=2, random_state=1,
max_depth=1, base_score=base_score)
utils.train_model_regression(estimator)

filename = "tmp.file"
if os.path.exists(filename):
raise OSError("File is already exist")
estimator.save_model(filename)
estimator = xgboost.XGBRegressor(base_score=base_score)
estimator.load_model(filename)
if os.path.exists(filename):
os.remove(filename)
with utils.tmp_dir() as tmp_dirpath:
filename = os.path.join(tmp_dirpath, "tmp.file")
estimator.save_model(filename)
estimator = xgboost.XGBRegressor(base_score=base_score)
estimator.load_model(filename)

assembler = assemblers.XGBoostModelAssembler(estimator)
actual = assembler.assemble()
Expand Down