grid_offset {tidysdm}

Get default grid cellsize for a given dataset

Description

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_offset(data)

Arguments

data

a sf::sf dataset used to size the grid

Value

the grid offset