Deprecation in R
Contents
After my recent article on marking deprecated code in Python, I had to do the same thing in R. It’s included in the language (in The R Base Package).
To deprecate an object simply make a call to the .Deprecated() function.
It will produce a warning—that can be suppressed by users by calling suppressWarnings().
It’s also possible to signal that an object has been removed through a call to .Defunct().
In this case it will produce an error, in other terms the program will stop working.
old_function <- function() {
.Deprecated(msg = "Will be removed in the next version")
cat("\nI'm old now I want to retire...")
}
dead_function <- function() {
.Defunct(msg = "Function removed :-(")
cat("\nI'm dead now I will not chat anymore...")
}
old_function()
# Will be removed in the next version
# I'm old now I want to retire...
dead_function()
# Error : Function removed :-(