R doesn’t come with a built-in constructor function for conditions, but we can easily add one.
(Advanced R, by Hadley Wickham)
Actually, there is simpleCondition()
, simpleError()
and the like,
but they don't allow specifying an additional class.
The functions in this package allow it:
library(condition) cond <- new_error("Something went wrong", class = "oops") cond is.error(cond)
See the vignette for additional details.
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