The vld_ functions are used within the chk_
functions. The chk_ functions (and their vld_
equivalents) can be divided into the following families.
In the code in this examples, we will use vld_*
functions
If you want to learn more about the logic behind some of the functions explained here, we recommend reading the book Advanced R (Wickham, 2019).
For reasons of space, the x_name = NULL argument is not
shown. For a more simplified list of the chk functions, you
can see the Reference
section.
chk_ Functions