| back_test | Out-of-sample prediction for whole period |
| evaluation_table | Out-of-sample prediction evaluation |
| load_5y_search_data | Load Goolge Trends data and initial claims data |
| load_claim_data | Load unemployment initial claims data |
| prism | PRISM function |
| prism_batch | PRISM stage 2 by batch |
| var_generator | PRISM regressors generator |