Crop the dataset obtained from crest.get_modern_data

Source: R/utils.R

Crop the dataset obtained from crest.get_modern_data according to an object of the class SpatialPolygonsDataFrame.

crop(x, shp)

Arguments

x

A crestObj produced by the crest.get_modern_data function.

shp

A shapefile (spatVect) to crop the data. Data points will be kept if their centroid is within the shape.

Value

An cropped version of the input crestObj.

Examples

if (FALSE) {
  data(M1)
  M1 <- terra::unwrap(M1)
  ## We want only the data covering Nigeria
  M2 <- M1[M1$COUNTRY == 'Nigeria', ]
  data(reconstr)
  reconstr.cropped <- crop(reconstr, M2)
  data1 <- terra::rast(reconstr$modelling$climate_space[, 1:3],
                                 crs=terra::crs(M1), type='xyz')
  data2 <- terra::rast(reconstr.cropped$modelling$climate_space[, 1:3],
                                 crs=terra::crs(M1), type='xyz')
  layout(matrix(c(1,2,3,4), byrow=FALSE, ncol=2), width=1, height=c(0.2, 0.8))
  plot_map_eqearth(data1, brks.pos=seq(13,29,2), colour_scale=TRUE,
                   title='Full dataset', zlim=c(13, 29))
  plot_map_eqearth(data2, brks.pos=seq(13,29,2), colour_scale=TRUE,
                   title='Cropped dataset', zlim=c(13, 29))
}