Comments (2)
Since Boruta is an all relevant feature selection method, this will occur quite often. Having many features ranked as the same level is showing that all of those features are relevant to the problem you are trying to solve and should be considered for subsequent feature selection techniques or modeling approaches. It doesn't rank them from first to last, but rather it tries to capture all the important, interesting features you might have in your dataset with respect to an outcome variable.
"Boruta is an all relevant feature selection method, while most other are minimal optimal; this means it tries to find all features carrying information usable for prediction, rather than finding a possibly compact subset of features on which some classifier has a minimal error." - Miron B. Kursa
Even so, the R package of this algorithm offers a graphical summary of the importances which could be helpful for ranking them (found page 3). This is something I am working on a pull request for the Python implementation. This function would use boxplots to show the distribution of features’ importance over the Boruta run, using colours to mark final decision; it also draws boxplots for the importance of worst, average and best shadow in each iterations.
Finally, you could consider other methods (Recursive Feature Elimination or Feature Importances) if you are looking for a ranking algorithm or to find the smallest subset of possible features such as these:
- https://github.com/DistrictDataLabs/yellowbrick/blob/develop/docs/api/features/rfecv.rst
- https://github.com/DistrictDataLabs/yellowbrick/blob/develop/docs/api/features/importances.rst
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thanks a lot @haleemason for clearing this up! closing this now.
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Related Issues (20)
- Numpy types aliases deprecated (`np.int`, `np.bool` and `np.float`)
- why estimators num is calculated by feature num in this way?
- max_iter values HOT 3
- ImportError: cannot import name 'BorutaPy' from 'boruta' HOT 1
- PKG for the survival analysis HOT 6
- Can I somehow speed the Borutapy process HOT 2
- Version update of Boruta on pypi? HOT 5
- What percentage of shadow features does each real feature outperform?
- AttributeError: module 'numpy' has no attribute 'int'. HOT 9
- Possible problems in installation HOT 1
- TypeError: BorutaPy.__init__() got an unexpected keyword argument 'early_stopping' HOT 1
- Kaggle n_estimators issue with DecisionTreeClassifier HOT 2
- Error when using BorutaPy with LogisticRegression
- AttributeError: module 'numpy' has no attribute 'bool' when using BorutaPy with RandomForestClassifier HOT 3
- BorutaPy selects different features in different iterations HOT 1
- AttributeError: module 'numpy' has no attribute 'int'. `np.int` was a deprecated alias for the builtin `int`. HOT 13
- Does boruta apply to time series data? HOT 1
- New release HOT 1
- Why does the number of total features (Confirmed + Tentative + Rejected) not equal to the input features?
- Error with package version specification upon installation
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