| CKD | CKD |
| DISR | Distributed iterated score regression |
| HCV | HCV |
| ISR | Iterated score regression |
| Mean | Mean method |
| MMLPCA | Modified maximum likelihood principal component analysis |
| MNIPALS | Modified nonlinear iterative partial least squares method |
| MRPCA | Modified regularized PCA |
| orange | orange |
| ozone | ozone |
| PM2.5 | PM2.5 |
| review | review |
| SR | Score regression |