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| bal.cs.psa | Balance for Categorical Covariate: Random Strata as part of a PSA |
| bal.fe.psa | Fisher's Exact Test for Independence of Treatments within Strata |
| bal.ks.psa | Kolgomorov-Smirnov 2 sample tests for multiple strata |
| bal.ms.psa | Balance for Continuous Covariate: Random Strata as part of a PSA |
| box.psa | Compare balance graphically of a continuous covariate as part of a PSA |
| cat.psa | Compare balance graphically of a categorical covariate as part of a PSA |
| circ.psa | Graphically investigate strata effect size contributions in a PSA |
| lindner | Data on 996 initial Percutaneous Coronary Interventions (PCIs) performed in 1997 at the Lindner Center, Christ Hospital, Cincinnati. |
| loess.psa | Graphical and loess based estimate of effect size using propensity scores |