| get_p | Extract p-value from tests | 
| get_p.aov | Extract p-value from tests | 
| get_p.aovlist | Extract p-value from tests | 
| pow | Power calculation | 
| print.possa_pow_df | Print pow results data frame | 
| print.possa_pow_list | Print pow results | 
| print.possa_sim_df | Print sim results | 
| sim | Simulation procedure |