Missing data imputation

Estimate missing sludge property values in the database using multiple methods.

The Global Database for Faecal Sludge Analysis
is supported by

GSGS logo with bold letters and circular design on white background, suggesting professionalism and collaboration Gates Foundation logo featuring stylized text Bill and Melinda Gates Foundation in a clean serif font on a white background, conveying a sense of trust and philanthropy IHE logo with bold uppercase letters IHE in a modern sans-serif font, accompanied by a circular graphic element, set against a white background, conveying a sense of innovation and global collaboration
© 2026 Global Sanitation Graduate School