options_zero {unitizer} | R Documentation |
This makes sure to unset options not present in target.
options_zero( base = merge_lists(getOption("unitizer.opts.init.base"), getOption("unitizer.opts.init")), as.is = union(getOption("unitizer.opts.asis.base"), getOption("unitizer.opts.asis")) ) options_update(tar.opts) validate_options(opts.to.validate, test.files = NULL)