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Mean survey cost per EA by region for bfa_eas. Conflict-affected regions (Sahel, Est) have higher costs. Used for demonstrating optimal (cost-variance) allocation.

Usage

bfa_eas_cost

Format

A tibble with 13 rows and 2 columns:

region

Factor. Region name

cost

Numeric. Mean per-EA survey cost (thousands FCFA)

Examples

# View the cost data
bfa_eas_cost
#> # A tibble: 13 × 2
#>    region             cost
#>    <fct>             <dbl>
#>  1 Boucle du Mouhoun   491
#>  2 Cascades            429
#>  3 Centre              240
#>  4 Centre-Est          407
#>  5 Centre-Nord         449
#>  6 Centre-Ouest        396
#>  7 Centre-Sud          419
#>  8 Est                 624
#>  9 Hauts-Bassins       365
#> 10 Nord                592
#> 11 Plateau-Central     408
#> 12 Sahel               638
#> 13 Sud-Ouest           418

# Optimal allocation minimizes variance for fixed total cost
sampling_design() |>
  stratify_by(region, alloc = "optimal",
              variance = bfa_eas_variance,
              cost = bfa_eas_cost) |>
  draw(n = 200) |>
  execute(bfa_eas, seed = 42)
#> # A tbl_sample: 200 × 17
#> # Weights:      74.5 [63.6, 107.25]
#>    ea_id    region   province commune urban_rural population households area_km2
#>  * <chr>    <fct>    <fct>    <fct>   <fct>            <dbl>      <int>    <dbl>
#>  1 EA_02518 Boucle … Kossi    Bouras… Rural              806         91    14.8 
#>  2 EA_11697 Boucle … Banwa    Sanaba  Rural             1359        197    31.2 
#>  3 EA_06821 Boucle … Nayala   Kougny  Rural             3371        449     3.12
#>  4 EA_12935 Boucle … Mouhoun  Tcheri… Rural             1279        153    10.4 
#>  5 EA_14276 Boucle … Nayala   Ye      Rural             1314        232     2.27
#>  6 EA_06814 Boucle … Nayala   Kougny  Rural              849        113    52.8 
#>  7 EA_03727 Boucle … Kossi    Dokui   Rural             2183        349    10.0 
#>  8 EA_02157 Boucle … Bale     Boromo  Rural              129         17     8.12
#>  9 EA_04881 Boucle … Nayala   Gossina Rural             1549        250    15.1 
#> 10 EA_05968 Boucle … Sourou   Kiemba… Rural              976        155    20.4 
#> # ℹ 190 more rows
#> # ℹ 9 more variables: accessible <lgl>, dist_road_km <dbl>,
#> #   food_insecurity_pct <dbl>, cost <dbl>, .weight <dbl>, .sample_id <int>,
#> #   .stage <int>, .weight_1 <dbl>, .fpc_1 <int>