load_covariates: Load covariates
In mbg: Model-Based Geostatistics

load_covariates

R Documentation

Load covariates

Description

Load covariates

Usage

load_covariates(
  directory,
  covariates_table,
  id_raster,
  year = NULL,
  file_format = "tif",
  add_intercept = FALSE,
  check_previous_years = 10
)

Arguments

`directory`	Directory containing all covariate sub-directories
`covariates_table`	`data.frame` containing at least the following fields: 'covariate': (character): Name of the covariate 'annual': (logical) Does the covariate vary by year? If so, look for the `year` in the name of the file. 'transform': (character) Name of a function to use to transform the covariate. Common options include 'identity' (no transformation), 'sqrt', 'abs', and 'log1p' 'normalize': (logical) Should the covariate be rescaled to have mean 0 and standard deviation 1 across all pixels in the study area? Generally should be set to TRUE for predictive covariates.
`id_raster`	terra::SpatRaster with non-NA pixels delineating the extent of the study area
`year`	(`numeric`, default NULL) Year of data to for time-varying covariates. If NULL, the default, uses the current year.
`file_format`	(`character`, default 'tif') File format for the raster covariate data. Used to search for the input file within the proper containing folder.
`add_intercept`	(`logical`, default FALSE) Should a covariate called "intercept", a raster object with 1s in all required cells, be placed at the start of the returned covariates list?
`check_previous_years`	(`integer` > 0, default 10) If annual data is not found in this year, how many previous years should be checked? If 0, will not check any previous years.