Data Science

Your First Model: Linear Regression

Senior Data Analyst
May 7, 2026
6 min read

The Code

from sklearn.linear_model import LinearRegression

model = LinearRegression()

model.fit(X_train, y_train)

predictions = model.predict(X_test)

Evaluate with R-Squared

from sklearn.metrics import r2_score

print(f"R² Score: {r2_score(y_test, predictions):.2f}")

*Day 128: Logistic Regression for Classification.*

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