has_warning | R Documentation |
The two functions has_warning()
and has_error()
check if an
expression produces warnings and errors, respectively.
has_warning(expr)
has_error(expr, silent = !interactive())
expr |
an R expression |
silent |
logical: should the report of error messages be suppressed? |
A logical value.
has_warning(1 + 1)
has_warning(1:2 + 1:3)
has_error(2 - 3)
has_error(1 + "a")
has_error(stop("err"), silent = TRUE)
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