| calculate | Calculate derived data | 
| calculate_abundances | Calculate isotope fractional abundances | 
| calculate_ratios | Calculate isotope ratios | 
| calculate_sums | Calculate ion sums | 
| load_HMR | Read data from HMR txt files | 
| load_LANS_maps | Load LANS ion map data | 
| load_LANS_summary | Load LANS summary data | 
| plot_maps | Plot NanoSIMS ion maps | 
| read_map_data | Read LANS full ion map data (.mat) files | 
| read_roi_data | Read LANS data summary (.dac/.dat) files | 
| spread_data | Spread data into wide format |