Can someone give me an explanation for the following sentence in bold.
"Primitive functions are only in the base package, and since they work at a low level, they can be more efficient (primitive replacement functions should not make copies) and may have different rules for matching arguments (for example, switch and call). This, however , due to the fact that it differs from other functions in R. Therefore, the main R command usually avoids creating them if there is no other option.
Source Link: http://adv-r.had.co.nz/Functions.html#lexical-scoping
source
share