slope | R Documentation |
This function allows to calculate slope statistics for polygons. For each polygon, the desired statistic(s) are returned.
calc_slope(engine = "exactextract", stats = "mean")
engine |
The preferred processing function from either one of "zonal", "extract" or "exactextract" as a character string. |
stats |
Function to be applied to compute statistics for polygons. Accepts either a single string or a vector of strings, such as "mean", "median", "sd", "min", "max", "sum", or "var". |
The required resource for this indicator is:
nasa_srtm
A function that returns an indicator tibble with specified slope statistics as variables and corresponding values (in degrees).
## Not run:
library(sf)
library(mapme.biodiversity)
outdir <- file.path(tempdir(), "mapme-data")
dir.create(outdir, showWarnings = FALSE)
mapme_options(
outdir = outdir,
verbose = FALSE
)
aoi <- system.file("extdata", "sierra_de_neiba_478140_2.gpkg",
package = "mapme.biodiversity"
) %>%
read_sf() %>%
get_resources(get_nasa_srtm()) %>%
calc_indicators(
calc_slope(stats = c("mean", "median", "sd", "var"), engine = "extract")
) %>%
portfolio_long()
aoi
## End(Not run)
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