| crossReg-package | Confidence intervals for crossover points |
| BootC | Confidence intervals for crossover points using the bootstrap methods |
| crossReg | Confidence intervals for crossover points |
| DeltaC | Confidence intervals for crossover points using the delta method |
| FiellerC | Confidence intervals for crossover points using the Fieller method |
| nonLinearC | Confidence intervals for crossover points using non-linear regression |