extract_strata: Extract strata

In tgoodbody/sgsR: Structurally Guided Sampling

Extract strata

Description

Extract stratum values to existing samples

Usage

extract_strata(
  sraster,
  existing,
  quiet = FALSE,
  data.frame = FALSE,
  filename = NULL,
  overwrite = FALSE
)

Arguments

sraster	spatRaster. Stratification raster.
existing	sf 'POINT'. Existing plot network.
quiet	Logical. If TRUE the user will not get messages about samples with NA values.
data.frame	Logical. Output as data.frame if TRUE
filename	Character. Path to write output samples.
overwrite	Logical. Choice to overwrite existing filename if it exists.

Value

An sf or data.frame object of samples with strata attribute.

Note

If data.frame = TRUE output will be written using write.table

Author(s)

Tristan R.H. Goodbody

See Also

Other extract functions: extract_metrics()

Examples

#--- Load sraster ---#
r <- system.file("extdata", "sraster.tif", package = "sgsR")
sr <- terra::rast(r)

#--- load existing samples ---#
e <- system.file("extdata", "existing.shp", package = "sgsR")
e <- sf::st_read(e)

extract_strata(
  sraster = sr,
  existing = e
)

tgoodbody/sgsR documentation built on March 7, 2024, 2:20 a.m.