| asSimpleVector | Example functions for the Chapter on Debugging |
| class2Graph | Functions to produce graphs from S4 class definitions |
| classList2Graph | Functions to produce graphs from S4 class definitions |
| computeClassLinearization | Compute the Class Linearization |
| convertMode | Example functions for the Chapter on Debugging |
| LPO | Compute the Class Linearization |
| printWithNumbers | Print a function with line numbers |
| randDNA | A function to generate random DNA sequences. |
| Rcal | A function to print a calendar. |
| S4Help | A function to find help for S4 classes and generics |
| setVNames | Example functions for the Chapter on Debugging |
| simplePVect | A function to print a vector at the C level. |
| simpleRand | A simple interface to C level random number generation. |
| simpleSort | A simple interface to sorting routines in R |
| subClassNames | Functions to return the names of either subclasses or superclasses. |
| subsetAsCharacter | Example functions for the Chapter on Debugging |
| superClasses | Return a list of super classes. |
| superClassNames | Functions to return the names of either subclasses or superclasses. |
| traceMethods | A function to turn on tracing for all methods of a S4 generic function. |
| untraceMethods | A function to turn on tracing for all methods of a S4 generic function. |