Standardize data frame columns and data types
clean_data_frame(df, columns_to_skip = NULL)"cleaned" data.frame which with columns 'compound', 'formula', 'isotope_label', label_index', followed by columns for each sample
Data frame to clean
Specify column heading to skip. All other columns not named 'compound', 'formula', and 'isotopelabel' will be assumed to be sample names.