Fig. 1: Changes in housing in sub-Saharan Africa between 2000 and 2015.
From: Mapping changes in housing in sub-Saharan Africa from 2000 to 2015
a, Prevalence of improved housing across sub-Saharan Africa in 2000 predicted at 5 × 5-km2 resolution. b, Prevalence of improved housing in 2015 predicted at 5 × 5-km2 resolution. c, Absolute difference in the prevalence of improved housing in 2000 and 2015. d, Prevalence of houses built with finished materials in 2000 predicted at 5 × 5-km2 resolution. e, Prevalence of houses built with finished materials in 2015 predicted at 5 × 5-km2 resolution. f, Absolute difference in prevalence of houses built with finished materials in 2000 and 2015. g, Increase in prevalence of improved housing (red line; shading, 95% confidence intervals) and housing built with finished materials (blue line) from 2000 to 2015. Results are derived from a geospatial model fitted to 62 surveys that represent 661,945 households (house construction materials) and 59 surveys that represent 629,298 households (house type). Houses were classified as improved if they had all of the following characteristics: improved water supply, improved sanitation, three or fewer people per bedroom and house made of finished materials (Extended Data Table 1 and Supplementary Methods). Maps were produced using the raster package (version 2.6-7) in R. The images were plotted using the rasterVis package (version 3.4).
