I thought Stavros' suggestion was going
to be to have the error message say what
type of offending object was found. If
the message said that a list of class
'data.frame' was found (probably the leading
case), then that would be much more helpful.
Patrick Burns
patr...@burns-stat.com
+44 (0)20 8525 0696
http://www.burns-stat.com
(home of "The R Inferno" and "A Guide for the Unwilling S User")
Stavros Macrakis wrote:
On Sun, May 31, 2009 at 6:10 PM, jim holtman <jholt...@gmail.com> wrote:
Message is very clear:
1 * 'a'
Error in 1 * "a" : non-numeric argument to binary operator
Though the user should have been able to figure this out, perhaps the error
message could be improved? After all, it is not the fact that the operator
is *binary* that implies that its argument must be numeric, but that it is
*arithmetic*. The binary operator %in%, for example, takes non-numeric
arguments.
Suggested replacement error message:
non-numeric argument to arithmetic operator
-s
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