| checkCharVec | Checking if all elements of a list are all character vectors | 
| checkIntVec | Checking if all elements of a list are all integer vectors | 
| checkLength | Checking if the length of the different elements of a list corresponds to what one expects. | 
| checkLogicVec | Checking if all elements of a list are all logical vectors | 
| checkNumOrIntVec | Checking if all elements of a list are all integer or numeric vectors | 
| checkNumVec | Checking if all elements of a list are all numeric vectors | 
| checkRanges | Checking if the value of a numeric or integer variable (of length 1) is located within a certain range. | 
| checkValues | Checking if the value of vectors (of length 1) is authorized. |