This function facilitates using spatialsample::spatial_block_cv multiple
times in an analysis. spatialsample::spatial_block_cv creates a grid based
on the object in data. However, if spatial blocks are generated multiple
times in an analysis (e.g. for a spatial_initial_split(), and then
subsequently for cross-validation on the training dataset), it might be
desirable to keep the same grid). By applying this function to the largest
dataset, usually the full dataset before spatial_initial_split(). The
resulting cellsize can be used as an option in
spatialsample::spatial_block_cv.
Usage
grid_cellsize(data, n = c(10, 10))Arguments
- data
a sf::sf dataset used to size the grid
- n
the number of cells in the grid, defaults to c(10,10), which is also the default for
sf::st_make_grid()