Random sampling method

Returns a function that performs random sampling on a spatial field.

sample_random(...)

Arguments

...

Additional arguments passed to terra::spatSample()

Value

A function that accepts x (SpatRaster) and size and returns an sf object

Examples

rast_grid = terra::rast(
  ncols = 300, nrows = 100,
  xmin = 0, xmax = 300,
  ymin = 0, ymax = 100
)

sam_field(rast_grid, 100, method = sample_random())
#> Simple feature collection with 100 features and 0 fields
#> Geometry type: POINT
#> Dimension:     XY
#> Bounding box:  xmin: 1.5 ymin: 3.5 xmax: 296.5 ymax: 99.5
#> CRS:           NA
#> First 10 features:
#>              geometry
#> 1  POINT (196.5 29.5)
#> 2    POINT (1.5 72.5)
#> 3   POINT (68.5 75.5)
#> 4    POINT (6.5 30.5)
#> 5   POINT (99.5 22.5)
#> 6   POINT (20.5 10.5)
#> 7  POINT (187.5 70.5)
#> 8  POINT (275.5 49.5)
#> 9  POINT (139.5 79.5)
#> 10   POINT (8.5 59.5)