How can I implement feature selection in Python?

How can I implement feature selection in Python?

You can use libraries like Scikit-learn to implement feature selection. Would you like a code example?

Yes, please provide a code example.

Here's a simple example using Recursive Feature Elimination (RFE):

from sklearn.datasets import load_iris
from sklearn.feature_selection import RFE
from sklearn.linear_model import LogisticRegression

# Load dataset
iris = load_iris()
X, y = iris.data, iris.target

# Create a model
model = LogisticRegression()

# Create RFE model and select top 2 features
rfe = RFE(model, 2)
rfe = rfe.fit(X, y)

# Summarize selected features
print(rfe.support_)
print(rfe.ranking_)

What does the output of this code mean?

The output of rfe.support_ shows which features are selected (True) or not (False), while rfe.ranking_ gives the ranking of all features.