[R] nls error message

[Uwe Ligges]

Jim Bouldin wrote:
> When I try to run the following non-linear regression with  variables
> index1 and prl3:
> 
>> beta = 4
>> nls(index1~beta*(1/prl3),start = list(beta = 4))
> 
> I get this error message:
> 
> Error in nls(index1 ~ beta * (1/prl3), start = list(beta = 4)) : 
>   REAL() can only be applied to a 'numeric', not a 'logical'

Please see the posting guide.  For reproducibility, we'd need prl3 and 
index1.


> I've got no clue as to the REAL() to which this is referring.  Any help
> appreciated. Thanks in advance.

Try traceback().

Uwe Ligges


> 
> Jim Bouldin
> Research Ecologist
> Department of Plant Sciences, UC Davis
> Davis CA, 95616
> 530-554-1740
> 
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