learn how to debug your program. I think the call is:
options(error = recover)
don't have R on my iPad so cannot check. When you do this, you drop into the
'browser' at which point you can examine the value and see that you have a
non-numeric object.
Sent from my iPad
On Oct 10, 2012, at 6:12, S Ellison <s.elli...@lgcgroup.com> wrote:
>> I keep getting this "Error in x^2 : non-numeric argument to
>> binary operator"
>> using multiple different codes, ones which have been verified
>> to work by my professor and other students.
>
> I confirm the previous poster's lack of error in running the code supplied. I
> also agree that something strange is going on.
>
> But the error message says you have a non-numeric argument in a binary
> operator. That means that i) you are using a binary operator (^ in this case)
> either yourself or in a function you;re calling and ii) either x or 2 is
> non-numeric.
>
> Two possibilities that are siompler than recompiling:
> First, are you calling the lm() you think you are? Run traceback() after the
> error to see where it actually occurred. You may find a user-defined function
> that is masking lm(). That could hang around from a previous R session if you
> defined one and saved the image on closing.
>
> Second: Check the class of your input data. Then fix whichever variable
> should be numeric and isn't. (this is less likely as lm() returns a different
> error with non-numeric input).
>
> S
>
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