Feature selection python

from sklearn.feature_selection import VarianceThreshold
sel = VarianceThreshold(threshold=(.05))
X = sel.fit_transform(X)

How to feature selection in python

>>> from sklearn.datasets import load_iris
>>> from sklearn.feature_selection import SelectKBest
>>> from sklearn.feature_selection import chi2
>>> X, y = load_iris(return_X_y=True)
>>> X.shape
(150, 4)
>>> X_new = SelectKBest(chi2, k=2).fit_transform(X, y)
>>> X_new.shape
(150, 2)

Similar codes

0 vote254 views1 answer
Python redirect with button click
Python
0 vote235 views1 answer
Python list inster 0
Python
5 votes247 views1 answer
3d pie chart in python
Python
0 vote250 views1 answer
How to maximize the screen in selenium
Python
7 votes235 views3 answers
How to delete migrations in django
Python
1 vote231 views2 answers
Boxplot show values seaborn
Python
12 votes246 views6 answers
Python merge dictionaries
Python
-1 vote288 views1 answer
How to remove an element from dictionary using his value python
Python
0 vote246 views2 answers
Python counter least common
Python
0 vote276 views1 answer
Django create multiple objects
Python Django