Fig 1.
Research Framework Process.
Fig 2.
Bar chart of average happiness scores across continents.
Fig 3.
Happiness score box graph for 2020-2024.
Fig 4.
Heat maps for each variable.
Fig 5.
Elbow Method (upper left); Average Silhouette Plot (upper right); Gap Statistics (lower left); Hartigan Plot (lower right) showing the optimal number of clusters.
Fig 6.
Clustering Scatter Plot.
Table 1.
Final Clustering Situation.
Fig 7.
Correlation Matrix Graph.
Table 2.
Performance Evaluation of Machine Learning Prediction Models.
Fig 8.
Fitting Situation of Prediction Model and Actual Value.
Table 3.
Ranking of Different Countries According to Happiness Scores.
Table 4.
One-way ANOVA.