This repository contains data and material to model and predict indicators of the Demographic and Health Surveys (DHS) by comparing three categories of methods : (1) spatial interpolation methods (i.e. inverse distance weighting, thin plate splines, kriging), (2) ensemble methods (i.e. random forest), and (3) Bayesian geostatistical models (i.e. with and without covariates). We focus on DHS indicators that potentially drive malaria in Senegal and classify them into socioeconomic and malaria prevention indicators. The outputs of the different methods are continuous surfaces of DHS indicators at 1 km spatial resolution.
This repository is based on work published in "Morlighem, C., Nnanatu, C.C., Visée, C., Fall, A., & Linard, C. (2025). Spatial interpolation of health and demographic variables: Predicting malaria indicators with and without covariates. PLOS One, 20(5), e0322819.
https://doi.org/10.1371/jou…". Please refer to the ReadMe file for instructions on how to use these codes.