| warning {base} | R Documentation |
Warning Messages
Description
warning generates a warning message that corresponds to its
argument and the expression or function from which it was called.
Usage
warning(message)
Arguments
message |
character string (of length 1) or |
Details
The result depends on the value of
options("warn").
If warn is negative warnings are ignored; if it is zero they
are stored and printed after the top–level function has completed;
if it is one they are printed as they occur and if it is 2 (or larger)
warnings are turned into errors.
If warn is zero (the default),
a top–level variable last.warning is
created. It contains the warnings which can be printed via a call to
warnings.
See Also
stop for fatal errors, warnings,
and options(warn=..).
Examples