#' Function to read raster files within a nested tibble.
#'
#' @param file Vector of file names containing raster data.
#'
#' @param forify Should the raster data also be loaded (or converted/fortified)
#' into a tabular form?
#'
#' @author Stuart K. Grange
#'
#' @return Nested tibble grouped by rows.
#'
#' @export
ra_read_nested <- function(file, forify = FALSE) {
# Read variables and levels
df <- ra_read_variables(file)
# Read the raster data within a nested tibble
df <- df %>%
rowwise(file,
level,
variable) %>%
mutate(raster = list(raster::brick(file, varname = variable, level = level)))
# Format raster data as tabular data too
if (forify) {
df <- mutate(df, raster_fortify = list(ra_forify(raster)))
}
return(df)
}
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