Just an additional note: It must be a problem with the
variable names. If I change "total.inf" to for
instance "ttotal.inf" then it works as expected.
What is the rule here? I would like to avoid such
problems in the future.
Thanks,
Werner
> Hi,
>
> first I want to thank all of you for the quick aid
> which is provided here on the list during all times.
> Thanks a lot for that!
>
> Then, I have a problem using summaryBy which most
> probably is a problem of wrong use by me or the
> like:
>
> I use this command:
> summaryBy(total+total.inf~gr, aE, FUN=sum)
>
> where aE is a
> > str(aE)
> 'data.frame': 127880 obs. of 16 variables:
> $ gr : num 2.02e+10 1.13e+10 2.15e+10
> 4.02e+10 1.04e+10 ...
> $ total : num 187714 5214 5214 260714
>
> 1304 ...
> $ total.inflated: num 188806 5245 5245 262230
>
> 1311 ...
> .
> .
> .
>
> Now, the resulting sum for total.inf per gr is
> perfectly fine but for the sum for total per gr I
> get
> only zeroes although they shouldn't be zero.
>
> Has anybody experienced a similar problem? What am I
> doing wrong?
>
> Thank you very much for your help,
> Werner
>
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