Realtime-SAE-Zimbabwe

This is a repository for the work "Real-time small area estimation of Food security in Zimbabwe: integrating mobile-phone and face-to-face surveys using joint multilevel regression and poststratification." (arXiv).

Structure of the repository

The repo should have a data folder and a sub-folder raw with the following datasets:

• Mobile-phone data: In our analysis, WFP's mVAM survey for Zimbabwe conducted within Real-time Monitoring system
• Face-to-face data: In our data analysis, this is The Rural Zimbabwe Vulnerability Assessment Committee (ZimVAC) survey. See Food and Nutrition Council Zimbabwe for the related reports. We used Household-level data (2023 survey for modelling, 2024 survey for validation).The aggregated data (2021 and 2022 survey) are used only for reference.

Both data should have the same structure, e.g.

household_id	adm1_name	adm2_name	obs_month	fcs	covariate_1	covariate_2	$\dots$
1	Matabeleland South	Beitbridge	2023-05-01	40	A	B

In addition, we will also need

• Data from the 2015 Zimbabwe DHS survey which can be can be requested here.
• Zimbabwe MICS6 SPSS Datasets. This can be requested and downloaded from here.
• Nigeria's shapefile: Zimbabwe_adm2_uscb_2022.shp can be downloaded from here. This is modified so that the adm2_name matches those from mVAM surveys, and saved to processed as shapefile.rds
• Zimbabwe 2022 census: n_hh_by_district_and_ward.xlsx should contain information extracted from section 5 of the report.

The data should be organized in the following tree structure:

 ├── data
 |  ├── raw
 |  │   ├── mVAM
 |  |   |   ├── WFP_mvam_weights_pop.xlsx
 |  |   |   └── mVAM.csv                                
 |  │   ├── ZimVAC 
 |  |   |   ├── zimvac2024_survey.csv.
 |  |   |   ├── zimvac2023_survey.csv
 |  |   |   ├── zimvac2022_agg.csv
 |  |   |   └── zimvac2021_agg.csv
 |  │   ├── zimbabwe-adm1-adm2-uscb-feb22
 |  │   |   ├── Zimbabwe_adm2_uscb_2022.shp
 |  │   |   ├── ...
 |  │   |   └── ...
 |  │   ├── MICS6
 |  │   |   ├── hh.sav
 |  │   |   ├── hl.sav
 |  │   |   └── ...
 |  │   ├── DHS
 |  │   |   ├── ZWGE72FL
 |  │   |   |   ├── ZWGE72FL.shp
 |  │   |   |   ├── ...
 |  │   |   |   └── ...
 |  │   |   └── ZWFW71FL.SAV
 |  |   ├── adm2_matched.csv
 |  |   └── n_hh_by_district_and_ward.xlsx
 |  └── processed - shapefile.rds