Mutate the file info (iso_get_file_info) within isofile objects by changing existing columns or introducing new ones. Works just like dplyr's mutate. You can also use mutate directly but it will not provide summary information on the operation. Note that this will create missing columns that exist in some but not all of the passed in isofile objects in all isofile objects (filling them with NAs) the same way that iso_get_file_info does.
iso_mutate_file_info(iso_files, ..., quiet = default(quiet))collection of iso_file objects
dplyr-style mutate conditions applied to the combined file info (see iso_get_file_info)
whether to display (quiet=FALSE) or silence (quiet = TRUE) information messages. Set parameter to overwrite global defaults for this function or set global defaults with calls to iso_turn_info_messages_on and iso_turn_info_messages_off
Other file_info operations:
iso_add_file_info.iso_file_list(),
iso_filter_files(),
iso_parse_file_info(),
iso_rename_file_info(),
iso_select_file_info(),
iso_set_file_root()