improve undernutrition maps

[ernestguevarra]

Will be good to take some effort to improve the maps. Some tips:

• It will be good to join maps of the same indicator i.e. map of moderate and severe stunting side-by-side. However, using facet_wrap is not usually the best approach for this because the scale of the values for moderate and for severe tend to be very different and if the scales of the values are fixed to the values with the wider range, the other indicator will not show variance on the map. Instead, I would recommend using the patchwork package for this - see https://patchwork.data-imaginist.com/index.html - to create a map like this:

or like this:

• It will be good to improve colours. I would recommend using the scale_fill_viridis_c(option = "E") when plotting maps (which is what I use in the plots above). Read https://cran.r-project.org/web/packages/viridis/vignettes/intro-to-viridis.html to learn about the advantages of using viridis colour scale.

• It will be good to put labels on each state (or locality if you are plotting locality). Look into geom_sf_text() (which is what I use in the plots above) or geom_sf_label().

[ernestguevarra]

Locality map results might look like this:

[ernestguevarra]

I have shown @RasikaBombatkar some of these techniques in our one-on-one sessions so if she is up for it, she can lead the team with this task.