gridEZ

gridEZ algorithm for generating enumeration zones (EZs) with user-defined target population and geographic size.

EZs are generated from three input rasters that cover the study region. These are 1. population counts or densities; 2. strata IDs; 3. settlement type IDs

Instructions

1. Download 'gridEZ_running_script_public_release_v1.R' and 'gridEZ_fn_public_release_v1.R'
2. Open 'gridEZ_running_script_public_release_v1.R' in R
3. Edit memory.limit(#), if needed
4. Edit ncores and par_type to suit your computing system's parallel processing
5. If needed, edit source() to include the file location of 'gridEZ_fn_public_release_v1.R' in order to read in the gridEZ function
6. Load in your input population, strata and settlement rasters by editing the pathways and filenames under'set input files' section
7. Edit gridEZ() specifications for your EZ generations under 'run grid EZ code' section
8. Run whole gridEZ_running_script_public_release_v1.R script

Saint Kitts and Nevis example

Please try out this example to see what an output sampling frame looks like. The R script includes code for producing summaries of the output EZs, this code may be helpful for summarising other gridded sampling frames.

Recommendations (as of 16/07/2019)

As the predefined_EZ_size functionality has been thoroughly tested, it is recommended that users take advantage of the predefined_EZ_size specification by setting this to = "small", "medium" or "large".

Testing of EZ_by_hh, target_hh_per_EZ, pop_per_hh, EZ_by_pop, target_pop_per_EZ and max_cells_per_EZ functionality is ongoing.