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Title: GitHub - vecxoz/vecstack: Python package for stacking (machine learning technique)

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Description: Python package for stacking (machine learning technique) - vecxoz/vecstack

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vecstack	https://github.com/vecxoz/vecstack/tree/master/vecstack
vecstack	https://github.com/vecxoz/vecstack/tree/master/vecstack
.gitignore	https://github.com/vecxoz/vecstack/blob/master/.gitignore
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CHANGELOG.md	https://github.com/vecxoz/vecstack/blob/master/CHANGELOG.md
CHANGELOG.md	https://github.com/vecxoz/vecstack/blob/master/CHANGELOG.md
LICENSE.txt	https://github.com/vecxoz/vecstack/blob/master/LICENSE.txt
LICENSE.txt	https://github.com/vecxoz/vecstack/blob/master/LICENSE.txt
PY2.md	https://github.com/vecxoz/vecstack/blob/master/PY2.md
PY2.md	https://github.com/vecxoz/vecstack/blob/master/PY2.md
README.md	https://github.com/vecxoz/vecstack/blob/master/README.md
README.md	https://github.com/vecxoz/vecstack/blob/master/README.md
pyproject.toml	https://github.com/vecxoz/vecstack/blob/master/pyproject.toml
pyproject.toml	https://github.com/vecxoz/vecstack/blob/master/pyproject.toml
setup.py	https://github.com/vecxoz/vecstack/blob/master/setup.py
setup.py	https://github.com/vecxoz/vecstack/blob/master/setup.py
README	https://github.com/vecxoz/vecstack
License	https://github.com/vecxoz/vecstack
	https://pypi.python.org/pypi/vecstack
	https://github.com/vecxoz/vecstack/blob/master/LICENSE.txt
	https://github.com/vecxoz/vecstack/actions
	https://coveralls.io/github/vecxoz/vecstack?branch=master
	https://pypi.python.org/pypi/vecstack/
	https://github.com/vecxoz/vecstack#vecstack
Functional API	https://github.com/vecxoz/vecstack#usage-functional-api
automatically saved	https://github.com/vecxoz/vecstack/blob/master/vecstack/core.py#L210
Log example	https://github.com/vecxoz/vecstack/blob/master/examples/03_log_example.txt
Scikit-learn API	https://github.com/vecxoz/vecstack#usage-scikit-learn-api
multilevel stacking	https://github.com/vecxoz/vecstack/blob/master/examples/04_sklearn_api_regression_pipeline.ipynb
classification and regression	https://github.com/vecxoz/vecstack/blob/master/vecstack/coresk.py#L87
class labels or probabilities	https://github.com/vecxoz/vecstack/blob/master/vecstack/coresk.py#L123
user-defined metric	https://github.com/vecxoz/vecstack/blob/master/vecstack/coresk.py#L128
user-defined transformations	https://github.com/vecxoz/vecstack/blob/master/vecstack/coresk.py#L91
unofficial support for Python 2.7 and 3.4	https://github.com/vecxoz/vecstack/blob/master/PY2.md
MIT license	https://github.com/vecxoz/vecstack/blob/master/LICENSE.txt
	https://github.com/vecxoz/vecstack#get-started
FAQ	https://github.com/vecxoz/vecstack#stacking-faq
Installation guide	https://github.com/vecxoz/vecstack#installation
Functional API	https://github.com/vecxoz/vecstack#usage-functional-api
Scikit-learn API	https://github.com/vecxoz/vecstack#usage-scikit-learn-api
Stacking concept + Pictures + Stacking implementation from scratch	https://github.com/vecxoz/vecstack/blob/master/examples/00_stacking_concept_pictures_code.ipynb
difference in parameters	https://github.com/vecxoz/vecstack#21-how-do-parameters-of-stacking-function-and-stackingtransformer-correspond
Regression	https://github.com/vecxoz/vecstack/blob/master/examples/01_regression.ipynb
Classification with class labels	https://github.com/vecxoz/vecstack/blob/master/examples/02_classification_with_class_labels.ipynb
Classification with probabilities + Detailed workflow	https://github.com/vecxoz/vecstack/blob/master/examples/03_classification_with_proba_detailed_workflow.ipynb
Regression + Multilevel stacking using Pipeline	https://github.com/vecxoz/vecstack/blob/master/examples/04_sklearn_api_regression_pipeline.ipynb
Functional API	https://github.com/vecxoz/vecstack/blob/master/vecstack/core.py#L133
Scikit-learn API	https://github.com/vecxoz/vecstack/blob/master/vecstack/coresk.py#L68
	https://github.com/vecxoz/vecstack#installation
installation details here	https://github.com/vecxoz/vecstack/blob/master/PY2.md
	https://github.com/vecxoz/vecstack#usage-functional-api
	https://github.com/vecxoz/vecstack#usage-scikit-learn-api
	https://github.com/vecxoz/vecstack#stacking-faq
How can I report an issue? How can I ask a question about stacking or vecstack package?	https://github.com/vecxoz/vecstack#1-how-can-i-report-an-issue-how-can-i-ask-a-question-about-stacking-or-vecstack-package
How can I say thanks?	https://github.com/vecxoz/vecstack#2-how-can-i-say-thanks
How to cite vecstack?	https://github.com/vecxoz/vecstack#3-how-to-cite-vecstack
What is stacking?	https://github.com/vecxoz/vecstack#4-what-is-stacking
What about stacking name?	https://github.com/vecxoz/vecstack#5-what-about-stacking-name
Do I need stacking at all?	https://github.com/vecxoz/vecstack#6-do-i-need-stacking-at-all
Can you explain stacking (stacked generalization) in 10 lines of code?	https://github.com/vecxoz/vecstack#7-can-you-explain-stacking-stacked-generalization-in-10-lines-of-code
Why do I need complicated inner procedure for stacking?	https://github.com/vecxoz/vecstack#8-why-do-i-need-complicated-inner-procedure-for-stacking
I want to implement stacking (stacked generalization) from scratch. Can you help me?	https://github.com/vecxoz/vecstack#9-i-want-to-implement-stacking-stacked-generalization-from-scratch-can-you-help-me
What is OOF?	https://github.com/vecxoz/vecstack#10-what-is-oof
What are estimator, learner, model?	https://github.com/vecxoz/vecstack#11-what-are-estimator-learner-model
What is blending? How is it related to stacking?	https://github.com/vecxoz/vecstack#12-what-is-blending-how-is-it-related-to-stacking
How to optimize weights for weighted average?	https://github.com/vecxoz/vecstack#13-how-to-optimize-weights-for-weighted-average
What is better: weighted average for current level or additional level?	https://github.com/vecxoz/vecstack#14-what-is-better-weighted-average-for-current-level-or-additional-level
What is bagging? How is it related to stacking?	https://github.com/vecxoz/vecstack#15-what-is-bagging-how-is-it-related-to-stacking
How many models should I use on a given stacking level?	https://github.com/vecxoz/vecstack#16-how-many-models-should-i-use-on-a-given-stacking-level
How many stacking levels should I use?	https://github.com/vecxoz/vecstack#17-how-many-stacking-levels-should-i-use
How do I choose models for stacking?	https://github.com/vecxoz/vecstack#18-how-do-i-choose-models-for-stacking
I am trying hard but still can't beat my best single model with stacking. What is wrong?	https://github.com/vecxoz/vecstack#19-i-am-trying-hard-but-still-cant-beat-my-best-single-model-with-stacking-what-is-wrong
What should I choose: functional API (stacking function) or Scikit-learn API (StackingTransformer)?	https://github.com/vecxoz/vecstack#20-what-should-i-choose-functional-api-stacking-function-or-scikit-learn-api-stackingtransformer
How do parameters of stacking function and StackingTransformer correspond?	https://github.com/vecxoz/vecstack#21-how-do-parameters-of-stacking-function-and-stackingtransformer-correspond
Why Scikit-learn API was implemented as transformer and not predictor?	https://github.com/vecxoz/vecstack#22-why-scikit-learn-api-was-implemented-as-transformer-and-not-predictor
How to estimate stacking training time and number of models which will be built?	https://github.com/vecxoz/vecstack#23-how-to-estimate-stacking-training-time-and-number-of-models-which-will-be-built
Which stacking variant should I use: 'A' ('oof_pred_bag') or 'B' ('oof_pred')?	https://github.com/vecxoz/vecstack#24-which-stacking-variant-should-i-use-a-oof_pred_bag-or-b-oof_pred
How to choose number of folds?	https://github.com/vecxoz/vecstack#25-how-to-choose-number-of-folds
When I transform train set I see 'Train set was detected'. What does it mean?	https://github.com/vecxoz/vecstack#26-when-i-transform-train-set-i-see-train-set-was-detected-what-does-it-mean
How is the very first stacking level called: L0 or L1? Where does counting start?	https://github.com/vecxoz/vecstack#27-how-is-the-very-first-stacking-level-called-l0-or-l1-where-does-counting-start
Can I use (Randomized)GridSearchCV to tune the whole stacking Pipeline?	https://github.com/vecxoz/vecstack#28-can-i-use-randomizedgridsearchcv-to-tune-the-whole-stacking-pipeline
How to define custom metric, especially AUC?	https://github.com/vecxoz/vecstack#29-how-to-define-custom-metric-especially-auc
Do folds (splits) have to be the same across estimators and stacking levels? How does random_state work?	https://github.com/vecxoz/vecstack#30-do-folds-splits-have-to-be-the-same-across-estimators-and-stacking-levels-how-does-random_state-work
How does vecstack.StackingTransformer differ from sklearn.ensemble.StackingClassifier?	https://github.com/vecxoz/vecstack#31-how-does-vecstackstackingtransformer-differ-from-sklearnensemblestackingclassifier
	https://github.com/vecxoz/vecstack#1-how-can-i-report-an-issue-how-can-i-ask-a-question-about-stacking-or-vecstack-package
here	https://github.com/vecxoz/vecstack/issues
	https://github.com/vecxoz/vecstack#2-how-can-i-say-thanks
	https://github.com/vecxoz/vecstack#3-how-to-cite-vecstack
	https://github.com/vecxoz/vecstack#4-what-is-stacking
stacking tutorial	https://github.com/vecxoz/vecstack/blob/master/examples/00_stacking_concept_pictures_code.ipynb
Ensemble Learning	https://en.wikipedia.org/wiki/Ensemble_learning
Stacking	https://en.wikipedia.org/wiki/Ensemble_learning#Stacking
Kaggle Ensembling Guide	https://mlwave.com/kaggle-ensembling-guide/
another link	https://web.archive.org/web/20210727094233/https://mlwave.com/kaggle-ensembling-guide/
Stacked Generalization	https://www.researchgate.net/publication/222467943_Stacked_Generalization
	https://github.com/vecxoz/vecstack#5-what-about-stacking-name
	https://github.com/vecxoz/vecstack#6-do-i-need-stacking-at-all
No Free Lunch Theorem	https://en.wikipedia.org/wiki/There_ain%27t_no_such_thing_as_a_free_lunch
	https://github.com/vecxoz/vecstack#7-can-you-explain-stacking-stacked-generalization-in-10-lines-of-code
Of course	https://github.com/vecxoz/vecstack/blob/master/examples/00_stacking_concept_pictures_code.ipynb
	https://github.com/vecxoz/vecstack#8-why-do-i-need-complicated-inner-procedure-for-stacking
stacking tutorial	https://github.com/vecxoz/vecstack/blob/master/examples/00_stacking_concept_pictures_code.ipynb
	https://github.com/vecxoz/vecstack#9-i-want-to-implement-stacking-stacked-generalization-from-scratch-can-you-help-me
Not a problem	https://github.com/vecxoz/vecstack/blob/master/examples/00_stacking_concept_pictures_code.ipynb
	https://github.com/vecxoz/vecstack#10-what-is-oof
	https://github.com/vecxoz/vecstack#11-what-are-estimator-learner-model
Q23	https://github.com/vecxoz/vecstack#23-how-to-estimate-stacking-training-time-and-number-of-models-which-will-be-built
	https://github.com/vecxoz/vecstack#12-what-is-blending-how-is-it-related-to-stacking
Q30	https://github.com/vecxoz/vecstack#30-do-folds-splits-have-to-be-the-same-across-estimators-and-stacking-levels-how-does-random_state-work
	https://github.com/vecxoz/vecstack#13-how-to-optimize-weights-for-weighted-average
	https://github.com/vecxoz/vecstack#14-what-is-better-weighted-average-for-current-level-or-additional-level
	https://github.com/vecxoz/vecstack#15-what-is-bagging-how-is-it-related-to-stacking
Bagging	https://en.wikipedia.org/wiki/Bootstrap_aggregating
	https://github.com/vecxoz/vecstack#16-how-many-models-should-i-use-on-a-given-stacking-level
Kaggle blog	http://blog.kaggle.com/
1st place in Homesite Quote Conversion	http://blog.kaggle.com/2016/04/08/homesite-quote-conversion-winners-write-up-1st-place-kazanova-faron-clobber/
	https://github.com/vecxoz/vecstack#17-how-many-stacking-levels-should-i-use
Q16	https://github.com/vecxoz/vecstack#16-how-many-models-should-i-use-on-a-given-stacking-level
	https://github.com/vecxoz/vecstack#18-how-do-i-choose-models-for-stacking
	https://github.com/vecxoz/vecstack#19-i-am-trying-hard-but-still-cant-beat-my-best-single-model-with-stacking-what-is-wrong
	https://github.com/vecxoz/vecstack#20-what-should-i-choose-functional-api-stacking-function-or-scikit-learn-api-stackingtransformer
	https://github.com/vecxoz/vecstack#21-how-do-parameters-of-stacking-function-and-stackingtransformer-correspond
	https://github.com/vecxoz/vecstack#22-why-scikit-learn-api-was-implemented-as-transformer-and-not-predictor
	https://github.com/vecxoz/vecstack#23-how-to-estimate-stacking-training-time-and-number-of-models-which-will-be-built
	https://github.com/vecxoz/vecstack#24-which-stacking-variant-should-i-use-a-oof_pred_bag-or-b-oof_pred
stacking tutorial	https://github.com/vecxoz/vecstack/blob/master/examples/00_stacking_concept_pictures_code.ipynb
	https://github.com/vecxoz/vecstack#25-how-to-choose-number-of-folds
Q23	https://github.com/vecxoz/vecstack#23-how-to-estimate-stacking-training-time-and-number-of-models-which-will-be-built
	https://github.com/vecxoz/vecstack#26-when-i-transform-train-set-i-see-train-set-was-detected-what-does-it-mean
stacking tutorial	https://github.com/vecxoz/vecstack/blob/master/examples/00_stacking_concept_pictures_code.ipynb
Q8	https://github.com/vecxoz/vecstack#8-why-do-i-need-complicated-inner-procedure-for-stacking
	https://github.com/vecxoz/vecstack#27-how-is-the-very-first-stacking-level-called-l0-or-l1-where-does-counting-start
	https://github.com/vecxoz/vecstack#28-can-i-use-randomizedgridsearchcv-to-tune-the-whole-stacking-pipeline
	https://github.com/vecxoz/vecstack#29-how-to-define-custom-metric-especially-auc
	https://github.com/vecxoz/vecstack#30-do-folds-splits-have-to-be-the-same-across-estimators-and-stacking-levels-how-does-random_state-work
	https://github.com/vecxoz/vecstack#31-how-does-vecstackstackingtransformer-differ-from-sklearnensemblestackingclassifier
detailed explanation	https://github.com/vecxoz/vecstack/issues/37
	https://github.com/vecxoz/vecstack#stacking-concept
Variant A	https://github.com/vecxoz/vecstack#variant-a-animation
Variant B	https://github.com/vecxoz/vecstack#variant-b-animation
	https://github.com/vecxoz/vecstack#variant-a
	https://github.com/vecxoz/vecstack/raw/master/pic/dia1.png
	https://github.com/vecxoz/vecstack/raw/master/pic/dia2.png
	https://github.com/vecxoz/vecstack/raw/master/pic/dia3.png
	https://github.com/vecxoz/vecstack#variant-a-animation
	https://github.com/vecxoz/vecstack/raw/master/pic/animation1.gif
	https://github.com/vecxoz/vecstack#variant-b
	https://github.com/vecxoz/vecstack/raw/master/pic/dia4.png
	https://github.com/vecxoz/vecstack/raw/master/pic/dia5.png
	https://github.com/vecxoz/vecstack/raw/master/pic/dia6.png
	https://github.com/vecxoz/vecstack/raw/master/pic/dia7.png
	https://github.com/vecxoz/vecstack#variant-b-animation
	https://github.com/vecxoz/vecstack/raw/master/pic/animation2.gif
	https://github.com/vecxoz/vecstack#references
Ensemble Learning	https://en.wikipedia.org/wiki/Ensemble_learning
Stacking	https://en.wikipedia.org/wiki/Ensemble_learning#Stacking
Kaggle Ensembling Guide	https://mlwave.com/kaggle-ensembling-guide/
another link	https://web.archive.org/web/20210727094233/https://mlwave.com/kaggle-ensembling-guide/
Stacked Generalization	https://www.researchgate.net/publication/222467943_Stacked_Generalization
machine-learning	https://github.com/topics/machine-learning
ensemble	https://github.com/topics/ensemble
ensemble-learning	https://github.com/topics/ensemble-learning
stacking	https://github.com/topics/stacking
bagging	https://github.com/topics/bagging
blending	https://github.com/topics/blending
stacked-generalization	https://github.com/topics/stacked-generalization
explain-stacking	https://github.com/topics/explain-stacking
stacking-tutorial	https://github.com/topics/stacking-tutorial
ensembling	https://github.com/topics/ensembling
Readme	https://github.com/vecxoz/vecstack#readme-ov-file
View license	https://github.com/vecxoz/vecstack#License-1-ov-file
Please reload this page	https://github.com/vecxoz/vecstack
Activity	https://github.com/vecxoz/vecstack/activity
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21 watching	https://github.com/vecxoz/vecstack/watchers
82 forks	https://github.com/vecxoz/vecstack/forks
Report repository	https://github.com/contact/report-content?content_url=https%3A%2F%2Fgithub.com%2Fvecxoz%2Fvecstack&report=vecxoz+%28user%29
Releases 8	https://github.com/vecxoz/vecstack/releases
v0.5.2 Latest Nov 1, 2025	https://github.com/vecxoz/vecstack/releases/tag/v0.5.2
+ 7 releases	https://github.com/vecxoz/vecstack/releases
Packages 0	https://github.com/users/vecxoz/packages?repo_name=vecstack
Please reload this page	https://github.com/vecxoz/vecstack
Python 100.0%	https://github.com/vecxoz/vecstack/search?l=python
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Status	https://www.githubstatus.com/
Community	https://github.community/
Docs	https://docs.github.com/
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