Synthetic dataset on eco-innovation for handling missing data

This dataset article describes the curation and preprocessing of the 2024 Eco-Innovation Index (EII) dataset, published by the European Commission. The raw dataset (in .xlsx format) was filtered to focus on the 2024 report, and missing values in the "Water Productivity" indicator were addressed via two imputation methods: (1) EU27 mean substitution and (2) cluster-based mean imputation using K-means, an unsupervised machine learning algorithm.