| Abbreviation | Definition |
|---|---|
| RPT | Renormalized Perturbation Theory |
| RPT | Rushing Paper Time |
| RQA | Recurrence Quantification Analysis |
| RQE | Robust Quality Estimator |
| RQI | Rayleigh Quotient Iteration |
| RR | rate ratio |
| RR | Rational Representation |
| RR | relative risk |
| RR | Relevant Ranks |
| RR | Risk Ratio |
| RRD | Reduced Resolution Dataset |
| RRMSEP | Relative Root Mean Square Error of Prediction |
| RRR | Relative Risk Reduction |
| RRT | Rotation Rotation Translation |
| RRV | Real Random Variable |
| RRX | Rank Regression on X |
| RRY | Rank Regression on Y |
| RS | Random Seed |
| RSBP | Regular Square Based Pyramidal |
| RSC | Rectangular Solid Core |