Get Years That Need Downloading

Compares available CSV files in the input directory against a full list of years to identify which years are missing. Automatically excludes 2011 (no official RSF data).

Usage

get_years_to_download(input_dir, all_years = 2002:2026)

Arguments

input_dir

Character. Directory path containing downloaded CSV files. Required (no default) so the function never reads from a package or home directory implicitly.

all_years

Integer vector. All years to check for. Defaults to 2002:2026.

Value

Integer vector of years that don't have corresponding CSV files. Returns empty vector if all years are present.

Details

This is a utility function useful for incremental updates. For example, when a new year of data becomes available at RSF, use this function to detect which years need downloading without re-downloading existing data.

Note: Year 2011 is never included in the returned vector, even if it's in the all_years range.