| plot.psicaTree | Plots a PSICA tree. |
| predict.psicaTree | Makes predictions for PSICA tree. |
| print.psicaTree | Prints a PSICA tree. |
| prune.psicaTree | Prunes a PSICA tree. |
| psica | Create a tree that discovers groups having similar treatment (intervention) effects. |
| snip.psicaTree | Prunes desired nodes in a PSICA tree. |