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Understanding R square Score

Understanding R² Score

The R² Score, also known as the Coefficient of Determination, measures how much of the variation in the target variable is explained by the model.

Formula

R² = 1

represents perfect prediction.

Interpretation

R² Value

Interpretation

1.0

Perfect prediction

0.9+

Excellent model

0.7 – 0.9

Good model

0.5 – 0.7

Moderate performance

Below 0.5

Weak performance

The closer the R² score is to 1, the better the model explains the variation in house prices.

Code

**from sklearn import metrics**

**r2_score = metrics.r2_score(**

**y_train,**

**y_train_pred**

**)**

**print(r2_score)**

Output

0.943650140819218

Interpretation

An R² score of 0.973 indicates that the model explains approximately 97.3% of the variation in house prices.

This suggests that the model has learned the underlying patterns very effectively.

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House Price Prediction Using Machine Learning (XGBoost)

VA
Vishalini A

House Price Prediction Using Machine Learning (XGBoost)

MODULE 1 : Introduction
lessonIntroduction of the Project
lessonWhat Is Data Science? Key Concepts and Core Features
lessonWhat Is Machine Learning?
lessonUnderstanding Regression Problems
lessonUnderstanding the House Price Prediction Problem
lessonUnderstanding the California Housing Dataset
lessonAim of the Project
MODULE 2 : Environment Setup and Exploratory Data Analysis
lessonEnvironment Setup and Exploratory Data Analysis
lessonWhy Use Google Colab?
lessonImporting Required Libraries
lessonLoading the California Housing Dataset
lessonCreating a Pandas DataFrame
lessonInspecting the Dataset
lessonUnderstanding Dataset Dimensions
lessonChecking for Missing Values
lessonStatistical Summary of the Dataset
lessonIntroduction to Exploratory Data Analysis
lessonUnderstanding Correlation
lessonCreating a Correlation Matrix
lessonVisualizing Correlations Using a Heatmap
MODULE 3 : Preparing Data for Machine Learning
lessonPreparing Data for Machine Learning
lessonWhy Data Preparation Matters
lessonUnderstanding Features and Labels
lessonSeparating Features and Target Variables
lessonUnderstanding Train-Test Split
lessonWhy We Need Unseen Data
lessonSplitting the Dataset
lessonCreating Training and Testing Sets
lessonUnderstanding the Resulting Datasets
lessonInspecting Training Data
lessonInspecting Testing Data
lessonUnderstanding Data Leakage
lessonPreparing for Model Training
MODULE 4 : Building the House Price Prediction Model Using XGBoost
lessonBuilding the House Price Prediction Model Using XGBoost
lessonWhat Is XGBoost?
lessonUnderstanding Ensemble Learning
lessonUnderstanding Decision Trees
lessonUnderstanding Gradient Boosting
lessonImporting the XGBoost Regressor
lessonCreating the Model
lessonTraining the Model
lessonHow the Model Learns
lessonUnderstanding Model Parameters
lessonWhy XGBoost Is Effective for House Price Prediction
lessonTraining Completion
MODULE 5 : Model Evaluation and Prediction
lessonModel Evaluation and Prediction
lessonMaking Predictions Using the Trained Model
lessonUnderstanding Regression Evaluation Metrics
lessonUnderstanding R square Score
lessonUnderstanding Mean Absolute Error (MAE)
lessonWhy Training Performance Alone Is Not Enough
lessonEvaluating the Model on Test Data
lessonCalculating Test R square Score
lessonUnderstanding Generalization
lessonVisualizing Actual vs Predicted Prices
MODULE 6 : Project Conclusion
lessonProject Conclusion
lessonLive Link and Output Overview
lessonMCQs
lessonResources

House Price Prediction Using Machine Learning (XGBoost)

MODULE 1 : Introduction
lessonIntroduction of the Project
lessonWhat Is Data Science? Key Concepts and Core Features
lessonWhat Is Machine Learning?
lessonUnderstanding Regression Problems
lessonUnderstanding the House Price Prediction Problem
lessonUnderstanding the California Housing Dataset
lessonAim of the Project
MODULE 2 : Environment Setup and Exploratory Data Analysis
lessonEnvironment Setup and Exploratory Data Analysis
lessonWhy Use Google Colab?
lessonImporting Required Libraries
lessonLoading the California Housing Dataset
lessonCreating a Pandas DataFrame
lessonInspecting the Dataset
lessonUnderstanding Dataset Dimensions
lessonChecking for Missing Values
lessonStatistical Summary of the Dataset
lessonIntroduction to Exploratory Data Analysis
lessonUnderstanding Correlation
lessonCreating a Correlation Matrix
lessonVisualizing Correlations Using a Heatmap
MODULE 3 : Preparing Data for Machine Learning
lessonPreparing Data for Machine Learning
lessonWhy Data Preparation Matters
lessonUnderstanding Features and Labels
lessonSeparating Features and Target Variables
lessonUnderstanding Train-Test Split
lessonWhy We Need Unseen Data
lessonSplitting the Dataset
lessonCreating Training and Testing Sets
lessonUnderstanding the Resulting Datasets
lessonInspecting Training Data
lessonInspecting Testing Data
lessonUnderstanding Data Leakage
lessonPreparing for Model Training
MODULE 4 : Building the House Price Prediction Model Using XGBoost
lessonBuilding the House Price Prediction Model Using XGBoost
lessonWhat Is XGBoost?
lessonUnderstanding Ensemble Learning
lessonUnderstanding Decision Trees
lessonUnderstanding Gradient Boosting
lessonImporting the XGBoost Regressor
lessonCreating the Model
lessonTraining the Model
lessonHow the Model Learns
lessonUnderstanding Model Parameters
lessonWhy XGBoost Is Effective for House Price Prediction
lessonTraining Completion
MODULE 5 : Model Evaluation and Prediction
lessonModel Evaluation and Prediction
lessonMaking Predictions Using the Trained Model
lessonUnderstanding Regression Evaluation Metrics
lessonUnderstanding R square Score
lessonUnderstanding Mean Absolute Error (MAE)
lessonWhy Training Performance Alone Is Not Enough
lessonEvaluating the Model on Test Data
lessonCalculating Test R square Score
lessonUnderstanding Generalization
lessonVisualizing Actual vs Predicted Prices
MODULE 6 : Project Conclusion
lessonProject Conclusion
lessonLive Link and Output Overview
lessonMCQs
lessonResources

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HCL GUVI (Grab Your Vernacular Imprint) Geek Network Private Limited is a leading online learning and skills development company, incubated by IIT Madras and IIM Ahmedabad.

Established in 2014 and acquired by the HCL Group in 2022, HCL GUVI is dedicated to providing effective and high-quality learning and skilling programs that transcend language barriers in technology education. HCL GUVI today is trusted by over 4.8 million users, 20 languages and 2500+ corporate partners.

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Refer & Earn

HCL GUVI (Grab Your Vernacular Imprint) Geek Network Private Limited is a leading online learning and skills development company, incubated by IIT Madras and IIM Ahmedabad.

Established in 2014 and acquired by the HCL Group in 2022, HCL GUVI is dedicated to providing effective and high-quality learning and skilling programs that transcend language barriers in technology education. HCL GUVI today is trusted by over 4.8 million users, 20 languages and 2500+ corporate partners.

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