imo_river_sampling/ ├── data/ │ ├── raw/ # downloaded files, never edited │ └── processed/ # derived files we create ├── scripts/ # R scripts ├── outputs/ # tables, maps └── README.md # notes to yourself

Download map data and plot distance bands to illustrate where the sample is or needs to be to estimate impacts of a DAI ITN mass distribution campaign in Abia state Nigeria, using the distance to river border with Rivers and Imo states as a running variable for regression discontinuity.