Gets required column names (except taxa names) for the package. This
function is designed to help users to add additional columns in
select_forcis_columns() (argument cols) if missing from this list.
These columns are required by some functions (compute_*(), plot_*(),
etc.) of the package and shouldn't be deleted.
Examples
# Get required column names (expect taxa names) ----
get_required_columns()
#> [1] "data_type"
#> [2] "cruise_id"
#> [3] "profile_id"
#> [4] "sample_id"
#> [5] "sample_min_depth"
#> [6] "sample_max_depth"
#> [7] "profile_depth_min"
#> [8] "profile_depth_max"
#> [9] "profile_date_time"
#> [10] "cast_net_op_m2"
#> [11] "subsample_id"
#> [12] "sample_segment_length"
#> [13] "subsample_count_type"
#> [14] "subsample_size_fraction_min"
#> [15] "subsample_size_fraction_max"
#> [16] "site_lat_start_decimal"
#> [17] "site_lon_start_decimal"
#> [18] "sample_volume_filtered"
#> [19] "subsample_all_shells_present_were_counted"
#> [20] "total_of_forams_counted_ind"
#> [21] "sampling_device_type"