Create a Habitat object

Create a spatial Habitat object based on an optional sf data.frame. If no geometry is provided, creates an empty Habitat object. The object has columns:

• habitat: logical, TRUE/FALSE

• weight: numeric

• geometry: sfc geometry

Usage

habitat(geometry = NULL, habitat = NULL, weight = NULL)

Arguments

geometry

An object of class sf or sfc. Optional, default is empty.

habitat

Logical vector indicating habitat presence. Default is logical(0).

weight

Numeric vector of weights. Default is numeric(0).

Value

An object of class habitat, inheriting from sf and data.frame.

Examples

library(sf)

# Empty habitat
h <- habitat()
h
#> Habitat object
#> Number of features: 0 
#> CRS: NA 
#> Simple feature collection with 0 features and 2 fields
#> Bounding box:  xmin: NA ymin: NA xmax: NA ymax: NA
#> CRS:           NA
#> [1] habitat  weight   geometry
#> <0 rows> (or 0-length row.names)

# Habitat with geometries
geom <- st_sfc(
  st_point(c(0, 0)),
  st_point(c(1, 1)),
  crs = 4326
)

hab <- habitat(
  geometry = geom,
  habitat = c(TRUE, FALSE),
  weight = c(0.8, 0)
)
hab
#> Habitat object
#> Number of features: 2 
#> CRS: EPSG:4326 
#> Simple feature collection with 2 features and 2 fields
#> Geometry type: POINT
#> Dimension:     XY
#> Bounding box:  xmin: 0 ymin: 0 xmax: 1 ymax: 1
#> Geodetic CRS:  WGS 84
#>   habitat weight    geometry
#> 1    TRUE    0.8 POINT (0 0)
#> 2   FALSE    0.0 POINT (1 1)