extract_clim_data {Euclimatch}

Extract Climate Data

Description

Extracts climate data from several types of inputs.

Usage

extract_clim_data(climdat, locations, id = FALSE)

Arguments

climdat

A SpatRaster, RasterStack or RaterLayer of the climate data to extract.

locations

An object specifying location of where to extract the climate data from. Can be a SpatialPolygosDataFrame, SpatialPolygons, SpatVector, a single data.frame or a list of data.frames. If data.frame of list of data.frames, must provide only two columns with column names "lon" for longitude and "lat" for latitude.

id

Choose to include cell numbers with climate data. 'TRUE' includes cell numbers, the default 'FALSE' does not include cell numbers. Used in the climatch_plot() function.

Value

A data.frame or list of data.frames of the extracted climate data.

Examples

# Create fake climate data in as a SpatRaster object
r1 <- data.frame()
for(i in 1:100){r1 <- rbind(r1, runif(60))}
rclim1 <- terra::rast(as(r1, "matrix")) #Create the RasterLayer
rclim2 <- c(rclim1, rclim1) # Create the stack

# Dummy lon lat data i.e., species occurrences. Cols must be labelled "lon" and "lat"
# Cols must be labelled "lon" and "lat"
species.occurr <- data.frame("lon" = 1:10, "lat" = 11:20)

# Create dummy polygons
x.coor <- c(1, 5,  10, 8, 3)
y.coor <- c(15, 20,  27, 30, 29)
dummy_coordinates <- cbind(x.coor, y.coor)
dummy_polygon <- terra::vect(dummy_coordinates, type = "polygon")
dummy_polygon2 <- rbind(dummy_polygon, dummy_polygon)

# Extract the dummy data
# Extract dummy lon lat data
extract_clim_data(climdat = rclim2, locations = species.occurr)
# Extract dummy SpatVector with single polygon
extract_clim_data(climdat = rclim2, locations = dummy_polygon2)